Calculate the perimeter for each of the following ​

Calculate The Perimeter For Each Of The Following

Answers

Answer 1

a) Perimeter =  17.4 cm

b) Perimeter   =210.6 cm

How are the perimeters calculated?

a) The perimeter of an irregular polygon = Sum of all the sides of the polygon.

Converting value of all sides to centimetres.

Perimeter = 3.4 +3.2 +4.3 +3.7+2.8

                 = 17.4 cm

b) The perimeter of an irregular polygon = Sum of all the sides of the polygon.

Converting value of all sides to centimetres.

Perimeter = 29.1+25.3+30+28.6+32.6+36.5+28.5

                 =210.6 cm

What is the perimeter of a polygon?

The total length of a polygon's boundary is what is referred to as its perimeter. To put it another way, a polygon's perimeter is equal to the sum of its sides. Due to the fact that polygons are closed plane shapes, their perimeters likewise reside in a two-dimensional plane.If the lengths of the sides of a polygon are known, it is possible to determine its area and perimeter.

To learn more about perimeter of a polygon, refer:

https://brainly.com/question/24297199

#SPJ13


Related Questions

Achromycin is to be administered 11mg per pound in 4 equal doses to a patient weighing 34kg. Oral suspension is available 125mg per 5mL. How many millilitres should you give per dose? Use 1 kg = 2.2 lbs and round your final answer to 1 decimal place.

Answers

We are told that 11 mg of Achromycin per patient pound must be administered, we are also given the weight of the patient as 34 kg, in order to properly use this weight we must convert it from kg to pounds by multiplying the weight in kg by 2.2, like this:

34×2.2 = 74.8

Then, the patient weight is 74.8 lbs, by multiplying this by the 11 mg per pound of Achromycin that have to be administered we can determine the mg of Achromycin, like this:

74.8×11 = 822.8

Then, 822.8 mg of Achromycin has to be administered, by dividing this amount by 4, we can determine the amount for each dose:

822.8/4 = 205.7

Then 205.7 mg are given per dose, since 5 mL contains 125 mg, we can take the ratio of mL to mg to get:

5/125 = 1/25

By multiplying the above ratio by 205.7 we can determine the milliliters that should be given per dose, like this:

205.7×1/25 = 8.2

Then, 8.2 mL must be given per dose

Luna brought all her savings with her to Rome, in euros. For the first week, she spent the same amount of money each day. The table shows how much Luna had left at the end of each day. What was the initial value of Luna's savings? Day Euros ? 315 1 2 280 3 245 4 210 5 175 6 140 7 105 35 euros 315 euros 80 euros 350 euros

Answers

every day she spent $35, if after 1 day she still have $315, the day before that she had $315+$35=$350

Therefore, the initial value was $350

Can someone pls help me find the equation for the arithmetic sequence and help me fill out the graph

Answers

Solution

- The question gives us the following arithmetic sequence:

[tex]t(n+1)=t(n)-4[/tex]

- We are asked to write out the explicit function for the sequence.

- To do this, we simply write out the terms of the sequence. After this, we would determine the common difference of the sequence.

- We will use the common difference to find the first term of the sequence and then use the formula below to find the explicit form of the arithmetic sequence:

[tex]\begin{gathered} t(m)=a+(m-1)d \\ \text{where,} \\ a=\text{first term of the sequence} \\ d=\text{common difference} \\ m=\text{ number of terms} \\ \\ (\text{Note that: }m=n+1\text{, since the formula starts assumes that the sequence starts from the 1st term not zeroth term} \end{gathered}[/tex]

- We have been given that the second term of the sequence is 10. We would also use this term to form our sequence.

[tex]\begin{gathered} \text{Let n=2} \\ \text{The formula becomes} \\ t(2+1)=t(2)-4 \\ t(3)=t(2)-4 \\ \\ \text{But we know that }t(2)=10 \\ \therefore t(3)=10-4 \\ t(3)=6 \\ \\ \text{Let n=3} \\ t(3+1)=t(3)-4 \\ t(4)=6-4 \\ t(4)=2 \\ \\ \text{Let n=4} \\ t(4+1)=t(4)-4 \\ t(5)=2-4 \\ t(5)=-2 \\ \\ \text{Thus, we can write out the terms of the sequence as follows:} \\ \ldots,t(2),t(3),t(4),t(5),\ldots=\ldots10,6,2,-2\ldots \\ \\ \text{ We can observe that the common difference is -4 since,} \\ 6-10=-4 \\ 2-6=-4 \\ -2-2=-4 \\ \text{And so on}\ldots \\ \\ \text{Thus, we can trace our sequence back to its first term as follows:} \\ t(2)-t(1)=-4 \\ 10-t(1)=-4 \\ \text{Subtract 10 from both sides} \\ -t(1)=-4-10 \\ \therefore t(1)=14 \\ \\ t(1)-t(0)=-4 \\ 14-t(0)=-4 \\ \text{Subtract 14 from both sides} \\ -t(0)=-4-14=-18 \\ \therefore t(0)=18. \\ \\ \text{Thus, the first term }t(0)=18 \end{gathered}[/tex]

- Let us now apply the formula for the nth term of a sequence to find the explicit formula:

[tex]\begin{gathered} first\text{ term =}t(0)=a=18 \\ \text{common difference}=d=-4 \\ t(m)=a+(m-1)d \\ \\ t(m)=18+(m-1)(-4) \\ \text{Expand the bracket} \\ t(m)=18+m(-4)-1(-4) \\ t(m)=18-4m+4 \\ \\ \therefore t(m)=22-4m \\ \\ \text{Let us write the sequence in terms of n} \\ m=n+1 \\ t(n)=22-4(n+1) \\ t(n)=22-4n-4 \\ t(n)=18-4n \\ \\ \text{Thus, the explicit function is:} \\ t(n)=18-4n \end{gathered}[/tex]

- With the above formula, we can proceed to populate the table. Let us use the formula to calculate all the terms for each value of n.

[tex]\begin{gathered} t(n)=18-4n \\ \\ \text{when n = 0} \\ t(0)=18-4(0) \\ t(0)=18 \\ \\ \text{when n= 1} \\ t(1)=18-4(1) \\ t(1)=14 \\ \\ \text{when n=2} \\ t(2)=18-4(2) \\ t(2)=10 \\ \\ \text{when n = 3} \\ t(3)=18-4(3) \\ t(3)=18-12=6 \\ \\ \text{when n = 4} \\ t(4)=18-4(4) \\ t(4)=2 \\ \\ \text{when n = 5} \\ t(5)=18-4(5) \\ t(5)=-2 \end{gathered}[/tex]

- On the table, we have the values filled in below:

Final Answer

The explicit form of the sequence is:

[tex]t(n)=18-4n[/tex]

it’s 6%86 gainsborough she

A person invests $6,750 in an account that earns 5.25% annual interest compounded continuously. Findwhen the value of the investment reaches $15,000. If necessary round to the nearest tenth.The investment will be reach $15,000 in approximatelyyears.

Answers

[tex]\begin{gathered} \text{Given} \\ A=15000 \\ P=6750 \\ r=5.25\%\rightarrow0.0525 \end{gathered}[/tex]

Recall the formula for the Future value of a principal amount, compounded continuously.

[tex]\begin{gathered} A=Pe^{rt} \\ \text{where} \\ A\text{ is the Future Value} \\ P\text{ is the Principal amount} \\ r\text{ is the rate in decimals} \\ t\text{ is time in years} \end{gathered}[/tex]

Rearrange the equation so that we can solve for time t.

[tex]\begin{gathered} A=Pe^{rt}^{} \\ \frac{A}{P}=\frac{Pe^{rt}}{P} \\ \frac{A}{P}=e^{rt} \\ e^{rt}=\frac{A}{P} \\ \ln e^{rt}=\ln \mleft(\frac{A}{P}\mright) \\ rt\ln e^{}=\ln \mleft(\frac{A}{P}\mright) \\ rt^{}=\ln \mleft(\frac{A}{P}\mright) \\ \frac{rt}{r}=\frac{\ln (\frac{A}{P})}{r} \\ t=\frac{\ln(\frac{A}{P})}{r} \end{gathered}[/tex]

Now substitute the following given and we have

[tex]\begin{gathered} t=\frac{\ln(\frac{A}{P})}{r} \\ t=\frac{\ln (\frac{15000}{6750})}{0.0525} \\ t=\frac{\ln (\frac{20}{9})}{0.0525} \\ t=15.2096704\text{ years} \end{gathered}[/tex]

Rounding the answer to the nearest tenth, the investment will reach $15000, in approximately 15.2 years.

What is the equation of the
line that goes through
(-1, 3) and is perpendicular
to y = 4x - 7?

Answers

Answer:

Step-by-step explanation:Perpendicular lines have a slope that is the negative reciprocal of the given line.

For example, if a given line has the slope 3/2, the the perpendicular line would have the slope -2/3.

For the given line: y = 4x - 7, the perpendicular line would have a slope of -1/4

There isn't enough info in the question to determine the y-intercept. Literally, any y-intercept could work and the line would still be perpendicular. Is the line supposed to pass through a certain point?

Your answer would be something like: y = -1/4 x + b

b is the y-intercept...if your question paper is multiple choice, choose the answer with the slope of -1/4. If it's supposed to pass through a certain point (x,y) replace x and y with the values in that point and solve for b to get the y-intercept.

determine the answer to the nearest tenth of a percent.12 out of 52 cards in a deck are face cards.What percentage of cards in a deck are face cards?

Answers

Total number of cards: 52

Number of face cards: 12

To calculate the percentage that the face cards represent we need to divide the number of face cards by the total number of cars, and then multiply by 100%:

[tex]\frac{12}{52}\times100[/tex]

The first division 12/52 will give us the proportion that the face cards represent, and by multiplying that by 100 we find the percentage.

Solving the operations:

-solving the division

[tex]0.2308\times100[/tex]

-solving the multiplication:

[tex]23.08[/tex]

The face cards represent 23.08%.

Rounding to the nearest tenth of a percent (one decimal place):

[tex]\approx23.1[/tex]

Answer: 23.1%

Real world compositionsShoe sizes are marked differently in many countries. In Japan, a shoe size is 16 more than the size in the United States. In Korea, a shoe size is 224 more than the size in Japan. Determine the function of the U.S. size of a shoe in terms of the shoe size in Korea. What is the U.S. shoe size of a shoe that is 250 in Korea? Solve using composite functions

Answers

To solve this exercise, we define the following variables:

• j = Japan size of shoes,

,

• u = United Sates size of shoes,

,

• k = Korea size of shoes.

From the statement of the problem, we know that:

0. In Japan, shoe size is 16 more than the size in the United States →, j = 16 + u,,

,

1. In Korea, shoe size is 224 more than the size in Japan →, k = 224 + j.

We must find a function for the U.S. size of a shoe (u) in terms of the shoe size in Korea (k).

1) From point 1, we have:

[tex]\begin{gathered} j=16+u, \\ u=j-16. \end{gathered}[/tex]

2) From point 2, we have:

[tex]\begin{gathered} k=224+j, \\ j=k-224. \end{gathered}[/tex]

Replacing the expression of j in terms of k in the expression of u, we get:

[tex]u=j-16=(k-224)-16=k-240.[/tex]

Replacing the value k = 250 in the last equation, we get:

[tex]u=250-240=10.[/tex]

Answer

The U.S. shoe size of a shoe that is 250 in Korea is equal to 10.

I'll give brainliest!

Answers

Answer:

=1/1024

Step-by-step explanation:

4^-5

=1/4^5

=1/1024

Rate as brainliest

Answer. =1/1024.

Here is it step-by-step:
4^-5
=1/4^5
and 1/1=1024

The sales tax in Arizona is 7.5%. The price tag on a T-shirt in Arizona says $11.50. What is the sales tax, in dollars, for this item?

Answers

Answer:

$0.8625

Explanation:

The sales tax for the t-shirt will be 7.5% of the price. So, 7.5% of $11.50 can be calculated as:

[tex]\text{ \$11.50 }\times\text{ 7.5\% = 11.50}\times\frac{7.5}{100}=\text{ \$0.8625}[/tex]

So, the sales tax for this item is $0.8625

a student measures which method of taking notes improves grades more, using a computer or a pencil and paper. what type of study is described?Sample StudyExperiment Observational Study Cluster Study

Answers

Since the student is meausuring something we conclude that this is an experiment.

Use the inverse trigonometric keyson a calculator to find the measureof angle A

Answers

ANSWER

A = 51°

EXPLANATION

ABC is a right triangle. We know the length of the hypotenuse, AB = 44 m, and the length of the adjacent leg to angle A, AC = 28 m. To find the measure of angle A we have to use the cosine of that angle,

[tex]\cos A=\frac{AC}{AB}[/tex]

Solving for A,

[tex]A=\cos^{-1}\left(\frac{AC}{AB}\right)[/tex]

Replace with the known values and solve,

[tex]A=\cos^{-1}\left(\frac{28}{44}\right)=\cos^{-1}\left(\frac{7}{11}\right)\approx50.4788\degree\approx51\degree[/tex]

Hence, the measure of angle A is 51°, rounded to the nearest whole number.

Mrs. Smith spent $50 more at a store than mrs. Jones. Combined they spent at most $250. What is the most they each could have spent?

Answers

By working with inequalities, we will see that:

Mrs. Jones can spend between $0 and $100.Mrs. Smith can spend between $50 and $150.

How much each spent?

Let's define:

S = amount that Mrs. Smith spent.J = amount that Mrs. Jones spent

We know that Mrs. Smith spent $50 more at a store than Mrs. Jones, then:

S = J + 50

And together they spent at most $250, then:

S + J ≤ 250

Now, replacing the equation in the inequality, we get:

(J + 50) + J  ≤ 250

2*J + 50  ≤ 250

2*J  ≤ 250 - 50

2*J  ≤ 200

J  ≤ 200/2

J  ≤ 100

So Mrs. Jones spent at most 100 dollars.

And Mrs Smith spent $50 more than that, so we can write the inequality.

50  ≤ S ≤ 150

She spends between $50 and $150.

Learn more about inequalities:

https://brainly.com/question/24372553

#SPJ1

A cyclist rides her bike at a rate of 8 miles per hour. What is this rate in kilometers per hour? How many kilometers will the cyclist travel in 2 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answers. Rate:km/hDistance traveled in 2 hours:km

Answers

Given:

1 mile = 1.6 km

So, 8 miles per hour in kilometers per hour is given by:

[tex]\frac{1}{8}=\frac{1.6}{x}[/tex]

Where x = # of kilometers

So, solve for x:

[tex]\begin{gathered} x\cdot1=1.6\cdot8 \\ x=12.8 \end{gathered}[/tex]

This is 12.8 km per hour

Next, the distance traveled in 2 hours is:

[tex]rate=\frac{distance}{time}\rightarrow distance=rate\times time[/tex]

Substitute the values:

[tex]distance=12.8\times2=25.6[/tex]

Answer:

Rate: 12.8 km/h

Distance traveled in 2 hours: 25.6 km

Under his cell phone plan, Deion pays a flat cost of $39 per month and $4 per gigabyte. He wants to keep his bill at $49.40 per month. How many gigabytes of data can he use while staying within his budget?

Answers

Answer:

(49.4 - 39) / 4

= 10.4 / 4

= 2.6GB

Step-by-step explanation:

a crew can clear 1/2 ton of dirt in 30 minutes. how many tons can they clear in 4 hours

Answers

Answer: 4 tons

Step-by-step explanation:

Since the crew can clear 1/2 ton in 30 minutes, 4 hours has eight 30 minutes, which means that 8x1/2 = 4

Answer: 4 tons

Step-by-step explanation:

30 minutes multiplied by 2 is 1 hour and 1 half times 2 is 1 ton, so the crew can clear one ton every hour. 4 hours times 1 ton is 4 tons an hour.

PLS HELP ME WITH THIS QUESTION ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The value of (x) will be equal to → x = 16 - K.

What is the perimeter?

Perimeter is the measure of the length of the boundary of any two dimensional shape.

Given is a quadrilateral with its sides given.

The perimeter of this quadrilateral will be the sum of the length of its sides. Since, in the question, the final value of perimeter is not given, therefore we will assume it as K. The perimeter will be equal to -

(7x - 1) + (- 8x - 5x) + (6x + 13) + (4 - x) = K

7x - 1 - 8x - 5x + 6x + 13 + 4 - x = K

16 - x = K

x = 16 - K

Therefore, the value of (x) will be equal to → x = 16 - K.

To solve more questions on Perimeter, visit the link below-

https://brainly.com/question/26497100

#SPJ1

2 PointsMULTIPLE CHOICEQuestion 42: PracticeWhich statements are true for the decimals 0.04 and 0.004?Choose two correct answers.in Base TenA0.04 is 10 times as much as 0.004.B.0.04 is 100 times as much as 0.004.Etice Solvingс0.004 is 10 the amount of 0.04.uizD0.004 is 100 the amount of 0.04

Answers

From the question;

we are given the decimal numbers

[tex]0.04\text{ and 0.004}[/tex]

If we consider dividing 0.04 by 0.004 we will have

[tex]\frac{0.04}{0.004}=10[/tex]

Therefore, 0.04 is 10 times as much as 0.004

Also, if we consider dividing 0.004 by 0.04 we will get

[tex]\frac{0.004}{0.04}=0.1=\frac{1}{10}[/tex]

Therefore, 0.004 is 1/10 the amount of 0.04

Hence

Given the decimals 0.04 and 0.004 we have

1. 0.04 is 10 times as much as 0.004

2. 0.004 is 1/10 the amount of 0.04

The entire graph of the function g is shown in the figure below.
Write the domain and range of g using interval notation.
(a) domain=
(b) range =

Answers

Domain = -5 (< or =) X (< or =) 3
Range = -3 (< or =) Y (< or =) 5

How do scatter plots and histograms differ from line graphs?
None of the above
All three are used synonymously
Scatter plots and histograms show trends, or how data changes over time while line
graphs show how data is distributed.
Scatter plots and histograms show how data is distributed while line graphs show
trends, or how data changes over time.

Answers

Answer: Scatter plots, to show relationships among numerical variables. Line graphs, to show change over time. Histograms, to show data distributions.

Step-by-step explanation: I looked it up

Determine the continuity at x = 2. Be sure to clearly state your reasoning.​ fastest answer get ranked brainliest

Answers

The answer is in my screenshot pic.

Look Ahead To find the new temperature, you found the sum of a positive anda negative integer. You can use a number line to help you think about addinga. During the day, the temperature at another weather station is 4°C. Overnight,it changes by-9°C Enrico models the situation on the number line below.Hasina says she can model it with one arrow. How can she model the situationLook Back whalHow do you know?positive and negative numbers.with just one arrow?434520 1-3 -2 -1

Answers

Let's begin by listing out the information given to us:

The tape diagram represents the ratio of your monthly allowance to your friend's monthly allowance. The monthly allowances total $72.How much is each allowance?
you [][][][][]
friend[][][][]

Answers

The allowance of each person is

You: $40Friend: $32

How to determine the amount of each person's allowance?

From the question, the tape diagram that can be used in our computation is given as

you [][][][][]

friend[][][][]

Counting the number of boxes, we have

You = 5

Friend = 4

Next, we represent the boxes as a ratio

So, we have

You : Friend = 5 : 4

This means that

You = 5/9 * Total allowance

Friend = 4/9 * Total allowance

From the question, we have

Total allowance = $72

Substitute the known values in the above equation

So, we have the following equation

You = 5/9 * 72

Friend = 4/9 * 72

Evaluate the products

You = 40

Friend = 32

Hence, the amount of each person's allowance is $40 and $32, respectively

Read more about tape diagram at

https://brainly.com/question/26511199

#SPJ1

The tree diagram represents an experiment consisting of two trials
What is P(A)

Answers

The value of probability P(A) is 0.60

How to determine the probability?

The clear tree diagram is added as an attachment

The given parameters from the tree diagram are:

Probability of event A: P(A only) = 0.6Probability of event A: P(A and C) = 0.3Probability of event A: P(A and D) = 0.7

The probability is calculated using the following probability formula

P(A) = P(A and D) + P(A and C)

Substitute the known values in the above equation

P(A) = 0.6 * 0.7 + 0.6 * 0.3

Evaluate the products

P(A) = 0.42 + 0.18

Evaluate the sum

P(A) = 0.60

Hence, the value is 0.60

Read more about probability at:

brainly.com/question/795909

#SPJ1

The slant height and the base of the cone are in the ratio 2:1. If the radius of the cone is 145cm. What is the total surface area of the cone?​

Answers

The most appropriate choice for cone and total surface area of cone will be given by-

Total surface area of the cone is [tex]198235.71 cm^2[/tex]

What is cone and total surface area of cone?

Cone is a 3 dimensional figure whose base is a circle and upper surface finally converge to a point.

Cone is obtained by revolving a right angled triangle about one of its legs.

Total surface area of the cone is the sum of curved surface area of the cone and the area of the base of the cone.

If r is the radius of the base of the cone and l is the slant height of the cone, then total surface area of the cone will be given by

[tex]\pi r(r+l)[/tex]

Here

Ratio of the slant height and radius of base of the cone = 2:1

Radius = 145cm

Slant height = [tex]145 \times 2[/tex]

                    = 290 cm

Total surface area of cone = [tex]\pi r(r+l)\\[/tex]

                                              = [tex]\frac{22}{7} \times 145\times (145+290)\\[/tex]

                                              = [tex]\frac{22}{7} \times 145 \times 435[/tex]

                                               = [tex]198235.71 cm^2[/tex]

To learn more about cone and total surface area of cone, refer to the link-

https://brainly.com/question/22397379

#SPJ9

Complete Question

The slant height and the radius of  base of the cone are in the ratio 2:1. If the radius of the cone is 145cm. What is the total surface area of the cone?​

What percent of 90 is 200?

Answers

45.00% because the total answers count 200- its 100% so we get to divide 1% value divide 200 by 100 to get 2.00 next calculate the percentage of 90: divide 90 by 1% value(2.00) and you get 45.00%

I need this answered From my prep guid, pre calc

Answers

Given:

The equation of the ellipse is,

[tex]\frac{(x-2)^2}{36}+\frac{(y+3)^2}{12}=1[/tex]

Explanation:

The general equation of ellipse with center (h,k) is,

[tex]\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1[/tex]

The center of te given ellipse is (2,-3).

Determine the value of a and b.

[tex]\begin{gathered} a=\sqrt[]{36} \\ =6 \end{gathered}[/tex][tex]\begin{gathered} b=\sqrt[]{12} \\ =2\sqrt[]{3} \end{gathered}[/tex]

The value of a is more than b. so major axis is horiontal and minor axis is vertical.

The coordinates of endpoints of major axis are,

[tex](2+6,3)=(8,-3)[/tex]

and

[tex](2-6,3)=(-4,-3)[/tex]

The coordinates of endpoints of minor axis,

[tex](2,-3+2\sqrt[]{3})[/tex]

and

[tex](2,-3-2\sqrt[]{3})[/tex]

or we can expressed coordinates of endpoints of minor axis as,

[tex](2,-3\pm2\sqrt[]{3})[/tex]

Fill in the blank to correctly complete the sentence.
Consider the following function.
​f(x)
=
2x4+6x3−4x2+2x+12
=
x−2)2x3+10x2+16x+34+80
By​ inspection, we can state that ​f(2​)=

Answers

The value of f(2) would be 80 which is determined by substituting the value of x = 2in the given function ​f(x) = (x −2)(2x³ + 10x² + 16x + 34) + 80.

What is a function?

The function is defined as a mathematical expression that defines a relationship between one variable and another variable.

The given function below is:

​f(x) = 2x⁴ + 6x³ −4x² +2x + 12

​f(x) = (x −2)(2x³ + 10x² + 16x + 34) + 80

We have to determine the value of f(2).

⇒ ​f(x) = (x −2)(2x³ + 10x² + 16x + 34) + 80

Substitute the value of x = 2 in the given function,

⇒ ​f(x) = (2 −2)(2(2)³ + 10(2)² + 16(2) + 34) + 80

​⇒ f(x) = (0)(2(2)³ + 10(2)² + 16(2) + 34) + 80

​⇒ f(x) = 0 + 80

​⇒ f(x) = 80

Therefore, the value of f(2) would be 80.

Learn more about the functions here:

brainly.com/question/12431044

#SPJ1

HELP ASAP Determine the values of x in the equation x2 = 81.

x = −9
x = ±9
x = ±40.5
x = 40.5

Answers

The value of x in the given quadratic equation are; +9 and -9.

What is a quadratic equation?

A quadratic equation is the second-order degree algebraic expression in a variable. An equation of degree 2 containing a single variable is known as the quadratic equation. Its general form is  ax² + bx + c = 0 , where variables are x and constants are a, b, and c.

As equation is  x²= 81

Taking square root on both sides;

⇒ √x² = √81

⇒ X = ± 9

Thus the value of X is  ± 9

Hence, The roots of the given quadratic equation are; +9 and -9.

Learn more about quadratic equations;

https://brainly.com/question/17177510

#SPJ1

which number is a rational number?A. √3B. √36C. √7D. π

Answers

We have to identify the rational number.

Any number that can be expressed as a fraction is a rational number.

In this case the options are:

A. The square root of 3. This does not have a solution with finite number of decimals, so it can not be expressed as a fraction. Then, it is not rational.

B. The square root of 36, unlike the square root of 3, does have a rational solution: 6. So the square root of 36 is a rational number.

C. The square root of 7. This does not have a solution with finite number of decimals, so it can not be expressed as a fraction. Then, it is not rational.

D. The number π has an infinite number of decimals, so it can not be represented as a fraction. Thn, it is not a rational number.

nswer: O√36 [ption B]

6.Landscaping Calculate the area (in square feet) of a flower garden shaped like a circularsector with radius 60 ft and central angle 40 degrees.

Answers

The area of the circular sector is given as:

[tex]\begin{gathered} \text{Area}=\frac{\theta}{360}\times\pi r^2 \\ \end{gathered}[/tex]

Given that, radius= 60ft and angle =40 degrees

[tex]\begin{gathered} \text{Area}=\frac{40}{360}\times3.14\times60\times60 \\ \text{Area}=\frac{452160}{360} \\ \text{Area}=1256\text{square f}eet \end{gathered}[/tex]

Other Questions
What was the relationship between German expansion and the MunichConference? How would the story most likely be different if it were told from Jasons point of view? PLEASE HELP SOON!!Q.1 What is the expression written in simplified radical form? 6 sqrt 27 + 11 sqrt 75Q.2 535 x (-10350)Q.3 Which expressions simplify to a rational answer?Select each correct answer.1/4 + 1/2sqrt3 + 4 sqrt4 + 7 2 x sqrt97 x sqrt64x2sqrt33. 7 x (1/3) 7 x sqrt81 A standard pair of six-sided dice is rolled. What is the probability of rolling a sum greater than or equal to 10? Express your answer as a fraction or a decimal number rounded to four decimal places. describe the keynesian transmission mechanism for a decrease in the money supply. assuming that no liquidity trap exists, that investment is interest-sensitive, and that the economy is in the horizontal portion of the as curve, what happens to real gdp and the price level? how can you tell if this is a direct transmission mechanism or an indirect one? Part B If m=18, what must be the value of n for the equation to have infinitely many solutions? Explain your answer Write the correct equation for the following statement and then solve for the given number ofmiles.You decide to rent a limo for prom. The rate is $200 plus $5 per miletraveled. Write an equation to calculate your total cost (c) at the end ofthe evening for a given number of miles (m).If you travel 45 miles what will be your total bill at the endof the evening? HEPP!!Which system of checks and balances checks this and why?The president vetoes a bill that has strong support in the House of Representatives and the Senate Rewrite the simple past sentences from the active voice into the passive voice.1.Alexander Flemming didnt discover penicillin in 1915.2.Two million people did not use the London Underground system last year.3.They didnt teach Chinese in our school.4.They didnt offer us anything to drink.5.Someone did not turn the lights off.help me pls!! what is the molality of a solution contain 82.6g of butane dissolved in 0.500kg of hexane why was it important that new england and chesapeake were different Compare the monthly payments and total loan costs for the following pairs of loan options. Assume that both loans are fixed rate and have the same closing costs.You need a $140,000 loan.Option 1: a 30-year loan at an APR of 9%.Option 2: a 15-year loan at an APR of 8.5% A molecule contains 3 atoms. It has 1 triple bond and 1 single bond. There are no lone pairs on any of the atoms. How many rheds are within the molecule?. Which is true of the force pair of Newton's third law?a.)The two forces are in the same direction.b.)The two forces never produce an acceleration. c.)The two forces act on different objects. The Sanchez family had dinner at their favorite restaurant. A 9% salestax was added to their bill. Amy paid the bill with a $10 gift certificateplus $30.60. How much did the family's dinner cost before tax? Roundyour answer to the nearest penny.Hint: Use the equation P+rP=T,where P is the price before tax, r is the sales tax rate, and T is the totalprice, including tax. buyers believe they have been victims of discrimination from a real estate broker. the buyers filed a complaint, and the next step is that a) hud will begin an investigation. b) hud will take the broker's license until the case is settled. c) the broker is considered to be guilty and will be watched until the investigation is complete. d) the buyers must prove that the discrimination occurred to continue the investigation. what expedition did thomas jefferson establish to explore the west under the leadership of lewis and clark? What are the degree and leading coefficient of the polynomial?Y^3+8y+12y^5-6 which situation is best modeled by an exponential distribution? tafadzwa runs between 10 and 16 laps every day. his times get slower as he gets tired, but his daily average is 48.2 s per lap. what is the probability that his mean lap time tomorrow will be less than 45 s? suppose that meteors large enough to cause mass extinction strike the earth at regular, although exceedingly large, intervals. what is the probability that a large meteor strike will cause a mass extinction event within the next 1000 years? on a dark desert highway, drivers fall asleep and run off the road randomly. what is the probability that a driver will run off the road in one particular 10-mile stretch of this highway? suppose that people call in sick randomly and independently of one another at a business called acme anvil supply. on average, one person calls in sick per week. what is the probability that no one will call in sick next week? suppose that 0.76% of tires are defective, and defective tires occur independently of one another. what is the probability that no more than three of the next 100 tires are defective? Drag the events shown in chronological order, with the first event to occur at the top and the last event at the bottom.President Lincoln is assassinatedthe union loses Fort SumterGeneral Sherman wages total war across Georgia in the march to the Sea campaignConfederate General Lee retreats at the Antietam, allowing the Union to claim victory General Lee surrenders at AppomattoxLincoln issues the Emancipation Proclamation