What is the value of the expression -9x2.2

Answers

Answer 1

Answer:

-1.8x^2

Step-by-step explanation:

Answer 2
I’m pretty sure it’s -19.2

Related Questions

Got this on my math test today:
x^(-1/3)=32x^(-2)

Answers

The value of x for the given equation is 8.

What is Logarithm?

Logarithm function is defined as the inverse of the exponential function.

If a^(b) = c, then b = log(c) at the base of a.

For negative numbers, the logarithm are complex numbers.

The given equation is as below,

x^(-1/3) = 32x^(-2)

It can be solved as follows,

x^(-1/3) = 32x^(-2)

Take logarithm on both sides to obtain,

log (x^(-1/3)) = log (32x^(-2))

=> -1/3 log(x) = log(32) - 2log(x)

=> 2log(x) - 1/3 log(x) = log(32)

=> 5/3log(x) = log(32)

=> log (x^(5/3)) = log(32)

Remove log from both sides to get,

x^(5/3) = 32

=> x = 32^(3/5)

=> x = 8

Hence, the solution of the given equation is x = 8.

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Jayden has two jobs. One week his paycheck was the same for both jobs. As a server he eared $9. 64 per hour plus $82. 35 in tips Working at a jewelry store he earned $14. 86 per hour plus $17. 10 in sales

bonuses.

Part A

Select the equation that can be used to determine the number of hours, h, that Jayden worked the week his paycheck was the same

for both jobs.

O 24. 5h

= 99. 45

0 91 99

= 31. 96h

0 82. 35h + 9. 64

0 9. 64h + 82. 35

17. 10h + 14. 86

14. 86h + 17. 10

Part B

BE

The total amount of money that Jayden made when both paychecks were the same is $

Answers

The equation that can be used to determine the number of hours, h, that Jayden worked the week his paycheck was the same is 65.25 = 5.22h and total amount of money that Jayden made when both paychecks were the same is $202.85.

Given :

Jayden has two jobs. One week his paycheck was the same for both jobs. As a server he eared $9. 64 per hour plus $82. 35 in tips Working at a jewelry store he earned $14. 86 per hour plus $17. 10 in sales

A )

Let h be the number of hours

9.64 * h + 82.35 = 14.86 * h + 17.10

82.35 - 17.10 = 14.86h - 9.64h

65.25 = 5.22h

B )

The total amount of money :

= 9.64 * 12.5 + 82.35

= 120.5 + 82.35

= $202.85

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How do I do this right here

Answers

So first of all you need to take the sum of all variables to know your denominator there are 22 students in total there are 9 males who doesnt have an A in class so to find the probability you need the ratio of males (who doesnt have an A) to the number of students.
9/22 will be your answer
theres not much to explain this is the formula of probablity
Always remember to use (Number of favorable outcomes) ÷ (Sample space).
wish you the best!

The sides of a triangle measure 2x+52x+5, x-4x−4, and 3\left(2x+1\right)3(2x+1). What is the perimeter of the triangle?

Answers

The expression for the perimeter is given as  9x + 4.

What is a triangle?

A triangle is a two dimensional shape bound by three sides. The sum of the interior angles of a triangle is 180°. The longest side of a triangle is always less than the sum of other two sides.

The sides of the given triangle are 2x + 5, x - 4 and 3(2x + 1) respectively.

Since, the perimeter is given as the sum of all the sides of a polygon.

In case of triangle, there are three sides which implies its perimeter will be the sum of all of its three sides given as,

Perimeter =  2x + 5 + x - 4 + 3(2x + 1)

⇒ 2x + x + 6x + 5 - 4 + 3

⇒ 9x + 4

Hence, the perimeter of the triangle is given as  9x + 4 units.

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can someone help me thanks!

Answers

m=10d is the equation of line of the given graph.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

In the given graph,

the line shows the Arias savings account.

Arias savings account over time.

As the line is passing through the origin it forms a linear equation.

From the graph we can see for 1 month it is 10 dollars

2 months has 20 dollars

m=10d

Hence, m=10d is the equation of line of the given graph.

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Need to find x and y

Answers

Answer:

x = 55 degrees, y = 55 degrees

Step-by-step explanation:

1.) Since y and the given angle are Same Side Interior angles, that means that they are supplementary. This means that y + 125 = 180.
2.) By solving this equation, we get y = 55 degrees.

3.) Now, since y and x are corresponding, that means that they equal each other. Therefore, x = 55 degrees.

Which set of coordinates

Answers

The coordinates of parallelogram in geometry ABCD are A( 0,2 ) ( 2,2 ) ( 1,1 ) ( -1, 1)

What is geometry?

The area of mathematics known as geometry is concerned with the dimensions, sizes, angles, and shapes of various objects that we encounter every day.

Solution:

All the angles of a parallelogram are not equal. Only the opposite angles of a parallelogram are equal and the consecutive (adjacent) angles of a parallelogram are always supplementary.

Hence using this property coordinates of parallelogram in geometry ABCD are A( 0,2 ) ( 2,2 ) ( 1,1 ) ( -1, 1)

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2. Estimate: then find sum
1.52
+1.21.

Answers

Answer:

Estimate: 3

Sum: 2.73

Step-by-step explanation:

To find the estimate, we can round our numbers to the nearest tenth (1.52 would become 1.5, and 1.21 would become 1.2). When we add these two numbers together, we get 2.7, which can be rounded up to 3.

To find the sum, we simply add 1.52 + 1.21, which equals 2.73.

6th Grade Math Inequalitys

Answers

U=16

Substitute the value of u with 16
21 greater or equal to 16/2

Simply 16/2
21 greater or equal to 8

21 is bigger than 8 so the statement is true telling you 16 is a solution of the inequality.

A tennis ball is dropped from a certain height. Its height in feet is given by
h=-16t²+36 where t represents the time in seconds after launch. How long is
the ball in the air?

Answers

The amount of time the tennis ball will be in the air after launch is √2 seconds.

What is a function?

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

The height of the tennis ball is given by the function h = - 16t² + 36, where t represents time in seconds.

Now, The amount of time the tennis ball will be in the air can be determined by the time when it hits the ground and at that time height of the ball should be zero.

Therefore, The time in the air is,

0 = - 16t² + 36.

16t² = 36.

t² = 2.

t = + √2 seconds, as time can not be negative.

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EXTRA POINTS!!
Law of Sines. Find the value of y. Round to the nearest tenth: 42,85, and 31

What does y equal? Please help asap!!

Answers

The side length of the triangle (y) will be 45.88 units.

What is the sine law?

The Law of Sines The law of trigonometric functions, sine law, sine formula, or sinusoidal rule is a trigonometric equation that relates the sizes of any triangle's edges to the sines of its orientations.

The angle of a triangle is 42° and its opposite side is 31. And the angle of a triangle is 85° and its opposite side is y. Then by the sine law, the equation is written as,

y / sin82° = 31 / sin42°

Simplify the equation, then the value of the variable 'y' is calculated as,

y / sin82° = 31 / sin42°

y = 31 x  sin82° / sin42°

y = 31 x 1.4799

y = 45.88 units

The side length of the triangle (y) will be 45.88 units.

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D.J. is planning an end of the school year party for her friends. She has $55 to
spend on soda and pizza.
Soda (2-liter)
Large Pizza
$1.25, including tax
$7.50, including tax
She knows she has to buy five 2-Liter bottles of soda.
Choose the inequality and calculate how many pizzas she can buy.
A 5(1.25) +7.50p ≥ 55; 7 pizzas
B 5(7.50) +1.25p> 55; 6 pizzas
C 5(7.50) +1.25p ≤ 55; 7 pizzas
D 5(1.25)+7.50p ≤ 55; 6 pizzas

Answers

Answer:

D

Step-by-step explanation:

He has max $55, so the total cost must be minor or equal to this value

6.25 + 7.50p ≤ 55

7.50p ≤ 55 - 6.25

7.50p ≤ 48.75

p ≤ 48.75 / 7.50

p ≤ 6.5

p = 6

Use the ALEKS calculator to approximate √68.
Round your answer to the nearest hundredth.

Answers

Answer:

Step-by-step explanation:

1\

\

five couples have reserved seats in a row for a concert. in how many different ways can they be seated?

Answers

five couples have reserved seats in a row for a concert, 3840 different ways can they be seated. So, using the concept of combination formula we get -

What is combination formula?

The number of possible ways to choose items from a collection when the order of choice is irrelevant is determined using the combination formula. Combination, to put it simply, is the process of choosing items or things from a bigger group where order is irrelevant.

The formula becomes: [tex]^nC_r[/tex]

Where n = total number of objects in the set.

r = number of choosing objects from the set

Given that,

there are five couples

These couples have reserved seats in a row for a concert.

So, arrangements of 5 couples can be done in 5! × 2⁵= 3840 ways.

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Find the x- and y-intercepts of the graph of x + 4y = 20. State each answer as an I refer or an improper fraction in simplest form.

Answers

x-intercept: 20

y-intercept: 5

To find the x- and y-intercepts of the graph of the equation x + 4y = 20, we need to solve the equation for x and y, respectively.

First, to find the x-intercept, we need to set y equal to 0 and solve for x. This gives us the following equation:

x + 4(0) = 20

x = 20

Therefore, the x-intercept is (20, 0).

Next, to find the y-intercept, we need to set x equal to 0 and solve for y. This gives us the following equation:

0 + 4y = 20

4y = 20

y = 5

Therefore, the y-intercept is (0, 5).

Chloe made an apple pie. After measuring the pie tin, Chloe calculated it has a circumference of 56.52 centimetres. What is the pie tin's diameter?

Answers

Answer:

Step-by-step explanation:

154 times 3, and then you try simplifying that by 2. Then it'll give you 140.32

Answer:

Step-by-step explanation:

140.4 or rounded 140

The graphs below have the same shape. What is the equation of the blue graph?

Answers

The blue graph is a vertical shift of 2 units downwards from the red graph.

What is vertical shift?One simple transformation is to move the entire graph of a function up, down, right, or left. Because this transformation involves adding a positive or negative constant to the function, the simplest shift is a vertical shift, which moves the graph up or down.

Here,

We are given the parent function f(x) as follows:

f(x) = x²

and it is depicted by a red graph.

Looking at the graph, we can clearly see that the graph of G(x) (represented by a blue graph) is a 2 unit downward translation of the graph of f(x).

As a result, the transformation function g(x) is as follows:

G(x) = f(x) - 2

which is also written as:

G(x) = x² - 2

As a result, the equation for G(x) is : G(x) = x² - 2.

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A circle with a radius of 5 is transformed into the following function:
(x/3)² + (5y)² = 25
What percentage of the original circle's area is the area of the new circle?
A. 60%
B. 167%
C. 36%
D. 278%

Answers

The level of the first circle's region is the region of the new circle will be 60%. Then, at that point, the right choice is A.

What is the area?

The quantity area demonstrates the amount of a sector on a planar or hemispherical cup. Surface area refers to the area of an open surface or the border of a multi-object, whereas the area of a plane region or plane field refers to the area of a form or planar material.

A circle with a sweep of 5 is changed into the accompanying capability:

(x/3)² + (5y)² = 25

The major and minor axes are given as,

(a/3)² = 25

a = 15

(5b)² = 25

b = 1

The percentage of area is given as,

P = [(Area of ellipse) / (Area of the circle)] x 100

P = [(πab) / (πr²)] x 100

P = [(15 x 1) / (5²)] x 100

P = (15/25) x 100

P = 0.6 x 100

P = 60%

The percentage of the original circle's area in the area of the new circle will be 60%. Then the correct option is A.

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the perpendicular line equation given y=7x-2 and passes through -4,6

Answers

The equation of the perpendicular line is y = -1/7(x + 4) + 6

How to determine the perpendicular line equation?

From the question, we have the following parameters that can be used in our computation:

y = 7x - 2

Also, from the question;

We have the following points

The point is given as

Point = (-4, 6) i.e.  (x, y) = (-4, 6)

The equation of a line can be represented as

y = mx + c

Where

Slope = m

By comparing the equations, we have the following

m = 7

This means that the slope is 7

The slopes of perpendicular lines are opposite reciprocals

This means that the slope of the other line is -1/7

The equation of the line is then calculated as

y = m(x - x₁) +y₁

Where

m = -1/7

(x₁, y₁) = (-4, 6)

So, we have

y = -1/7(x + 4) + 6

Hence, the line has an equation of y = -10/3x + 1

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the larger of two numbrers is twice the smaller number if 2 is subtracted from the larger number the result is 7 more than the smaller number find the numbers

Answers

Answer:

Step-by-step explanation:

smaller number = x

larger number = 2x

12 is subtracted from the larger number= 2x - 12

7 more than the smaller number = x+7

2x - 12 = x+7

2x -x = 7 +12

x = 19

smaller number = x = 19

larger number = 2x= 2(19)=38

Quadrilateral KLMN is similar to quadrilateral OPRS. Find PR. Round your
answer to the nearest tenth if necessary. Figures are not drawn to scale.
11
K
N
M
6
R
X
PP
S
51

Answers

The ratio of two corresponding sides of two similar polygons will be the same thus PR = x = 27.82.

What is the similarity?

Similar figures are those figures which are identical in shape, but not necessarily in size.

Two squares with sides of 10 and 5 are similar because their shape is exact but the size is different.

As per the given KLMN similar to OPRS.

The ratio of two corresponding sides of two similar polygons will be the same.

PR/51 = 6/11

PR = x = 27.82

Hence "As two comparable polygons' corresponding sides will have the same ratio, PR = x = 27.82.".

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PLEASE HELP!!! I NEED HELP ASAP

Answers

Answer:

y = 6x

Explanation:

This question is asking you to write a linear equation in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.

The y-intercept (where the line crosses the y-axis) is visibly 0. As for the slope, you can take two points, I'll use (0,0) and (0.1,0.6) to calculate it.

Slope = y - y/x- x

Slope = (0.6 - 0)/(0.1 - 0) = 0.6/0.1 = 6

Plug in 0 for b and 6 for m and you have an equation.

y = 6x + 0

y = 6x

Answer: y = 6x

Step-by-step explanation: To find the equation you use the form y=mx+b, m is the slope meaning the rise of the function over the run of the function. This function rises 0.6 in terms of y in the time it takes to move or “run” over 0.1 in terms of x. so it would be 6/10 divided by 1/10. which leaves you with 6. b stands for the y-intercept which in this case it crosses the y-axis at zero so it would be zero. so putting it together you would have y=6x

True or False? You can find the mean, median, and mode of a data set from a box and whisker plot

Answers

Answer: false

Step-by-step explanation:

Suppose that the probability of snow is 0.58. What is the probability that is will NOT snow?

Answers

The probability that it will NOT snow is 0.42

How to determine the probability that it will NOT snow?

From the question, we have the following parameters that can be used in our computation:

Probability of snow = 0.58

The probability that it will NOT snow is the complement of the probability that it will snow

This is represented as

Probability that it will NOT snow = 1 - probability that it will snow

Substitute the known values in the above equation, so, we have the following representation

Probability that it will NOT snow = 1 - 0.58

Evaluate

Probability that it will NOT snow = 0.42

Hence, the value is 0.42

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5. in the system of linear equations above, k is a constant. if the system has no solution, what is the value of k?

Answers

The system of linear equations above, k is a constant. if the system has no solution is  [tex]\frac{7}{6}[/tex]

[tex]\begin{aligned}& (k-1) x+\frac{1}{3} y=4 \\& k(x+2 y)=7\end{aligned}[/tex]

What is equations?

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7

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Please help:
In the figure, solve for x and y​

Answers

Answer:y=124

x=67

Step-by-step explanation:

y=180-56

y=124

x=67

suppose 48 out of every 120 people like baseball and of the people who like baseball three out of five play baseball if you ask 500 people how may would you expect to play baseball?

Answers

120 people out 500 people would play baseball.

What is fraction ?

The number of parts that make up a whole is all that a fraction informs us. With a slash between the two numbers, you can see if the numbers are fractions. The denominator is the lowest number, and the numerator is the highest. 1/2 is a fraction, for instance.

According to question

People who like baseball = 48/120

= 2/5

People who play baseball = 3/5 * 2/5

= 6/25

so, if there are 500 people,

then

500 * 6/25 = 120

hence, 120 People will play baseball.

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Question 20 of 25
If JKLM is a trapezoid, which statements must be true? Check all that apply.
A. Jis supplementary to K.
B. Jis congruent to K.
C. JK is parallel to LM.
D. JK a LM
E. KL is parallel to JM.
F. JM a KL

Answers

There are two parallel sides and two non-parallel sides to a trapezoid. These are the actual claims:

(A) J is supplementary to K

(E) KL is parallel to JM

What is a trapezoid?

In American and Canadian English, a quadrilateral with at least one pair of parallel sides is referred to as a trapezoid.

It is referred to as a trapezium in British and other varieties of English.

In Euclidean geometry, a trapezoid is a convex quadrilateral by definition. The bases of the trapezoid are the parallel sides.

So, a trapezoid's adjacent point angles sum up to 180 degrees.

This implies:

J+K = supplementary angles

L+M = supplementary angles

The highlights mentioned above indicate that J and K are supplemental angles. Thus, (a) is accurate.

A trapezoid also has two parallel sides.

Lines KL and JM must be parallel to one another because they are horizontal.

The highlighted portion above indicates that lines KL and JM are parallel. So, (e) is correct.

Therefore, there are two parallel sides and two non-parallel sides to a trapezoid. These are the actual claims:

(A) J is supplementary to K

(E) KL is parallel to JM

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STEM AND LEAF
What is the median number of minutes students read?

Answers

The median of the stem and leaf is C 24

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At the sewing store, Tessa bought a bag of mixed buttons. She got 19 large buttons and 31
small buttons. What percentage of the buttons were large?
Write your answer using a percent sign (%).
You

Answers

The percentage of large  buttons  Tessa  bought   is 38%

How to determine the percentage of large bottoms?

You should know that percentage deals with the proportion of the large buttons when divided by 100

The given parameters are

Recall that she bought mixed buttons on the shop

19 large buttons

31 small buttons

Then total number of buttons is 19+31=50 mixed buttons

Then percentage of large buttons is

(19/50)*100

Simplify the fractions to have

=38%

In conclusion, Tessa bought 38% of large buttons

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