Help please thank you.

Help Please Thank You.

Answers

Answer 1

The equation of straight line plotted on the graph are all attached below

Graph of Straight Line

The general equation of a straight line is y = mx + c, where m is the slope of the line and c is the y-intercept. It is the most common form of the equation of a straight line that is used in geometry. The equation of a straight line can be written in different forms such as point-slope form, slope-intercept form, general form, standard form, etc. A straight line is a two-dimensional geometrical entity that extends on both its ends till infinity.

For straight line graphs there is a linear relationship between the x and y values and so the line is straight and must be drawn with a ruler. The gradient determines how steep the line is and the y-intercept tells us the location where the straight line intersects the y-axis.

Linear means straight and a graph is a diagram which shows a connection or relation between two or more quantity. So, the linear graph is nothing but a straight line or straight graph which is drawn on a plane connecting the points on x and y coordinates.

Question 1;

The point is (-2, 5) and it has a slope of 2/3

We can find the y-intercept of the graph and then plot it's coordinate.

y = mx + c

5 = 2/3(-2) + c

c =19/3

The equation of the line is y = 2/3x + 19/3 or 3y = 2x + 19

We can proceed to use a graphing calculator to plot this.

Question 2;

The two given which the line pass across are (-2, -1) and (-3, 3)

Using a graphing calculator, the graph is attached below.

Question 3;

The equation 4x - 5y = 20 can be plotted as a straight line graph which is attached below.

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Help Please Thank You.
Help Please Thank You.
Help Please Thank You.

Related Questions

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 2 to 3. If there were 4335 total votes, how many yes
votes were there?

Answers

Answer: The number of no votes is 1876 votes.

What is the ratio?

"The ratio is a term that is used to compare two or more numbers. It is used to indicate how big or small a quantity is when compared to another".

For the given situation,

Let x be the number of votes.

The ratio of yes votes : no votes = 3x:2x

Total = 5x

Total votes = 4690 votes

Divide by 5 on both sides,

Thus the number of no votes =

Hence we can conclude that the number of no votes is 1876 votes.

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Step-by-step explanation:

Find the length of x

Answers

The length of x is 4.1.

Given:

Base = 9 + 4.5 = 13.5

From figure:

= [tex]\sqrt{9^{2}+5^{2} }[/tex]

= [tex]\sqrt{81+25}[/tex]

= [tex]\sqrt{96}[/tex]

= 9.797

4.5 opposite is equal to 4.5.

5 opposite equal to 5 and remaining to x - 5.

According to pythagorean theorem:

= [tex]\sqrt{4.5^{2}+(x-5)^{2} }[/tex]

[tex]13.5^{2} +x^{2} =(\sqrt{96}+\sqrt{4.5^{2} +(x-5)^{2} })^{2}[/tex]

[tex]\sqrt{13.5^{2} +x^{2} }[/tex] - [tex]\sqrt{96} = \sqrt{20.25+x^{2} +25 -10x}[/tex]

squaring on both sides

182.25 + [tex]x^{2}[/tex] - 96 = [tex]x^{2}[/tex] - 10x + 45.25

10x = 45.25 + 96 - 182.25

10x = 41

x = 4.1.

Therefore the value of x is 4.1.

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The points R(4, t), S(3, 8) and T(1, 2) lie on a same straight line. Find the value of t.​

Answers

well, we know that R, S and T are on the same straight line, hmmmm wait a second!! that means that the slope for RS must be the same as the slope for ST, heck, what's the slope for ST anyway?

[tex]S(\stackrel{x_1}{3}~,~\stackrel{y_1}{8})\qquad T(\stackrel{x_2}{1}~,~\stackrel{y_2}{2}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{2}-\stackrel{y1}{8}}}{\underset{run} {\underset{x_2}{1}-\underset{x_1}{3}}} \implies \cfrac{ -6 }{ -2 } \implies 3[/tex]

ahha!! that means that the slope for RS is really 3, hmmmm

[tex]R(\stackrel{x_1}{4}~,~\stackrel{y_1}{t})\qquad S(\stackrel{x_2}{3}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{8}-\stackrel{y1}{t}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{4}}} ~~ = ~~\stackrel{\textit{\LARGE m}}{3} \\\\\\ \cfrac{8-t}{-1}=3\implies 8-t=-3\implies 11-t=0\implies 11=t[/tex]

Whenever you are asked to construct and interpret a confidence interval, what are the steps to the process you must complete?

A. plan, state, do, conclude
B. state, plan, do, conclude
C. plan, do, state, conclude
D. state, do, conclude, plan

ANSWER IS B

Answers

B is the correct answer! Hope this helps

Suppose that F(x) = x² and G(x) = -1/4 (x+7)². Which statement best compares
the graph of G(x) with the graph of F(x)?
A. The graph of G(x) is the graph of F(x) stretched vertically, flipped
over the x-axis, and shifted 7 units to the right.
B. The graph of G(x) is the graph of F(x) stretched vertically, flipped
over the x-axis, and shifted 7 units to the left.
C. The graph of G(x) is the graph of F(x) compressed vertically,
flipped over the x-axis, and shifted 7 units to the right.
OD. The graph of G(x) is the graph of F(x) compressed vertically,
flipped over the x-axis, and shifted 7 units to the left.

Answers

The statement that best compares the graph of G(x) with the graph of F(x) is the graph of G(x) is the graph of F(x) compressed vertically, flipped over the x-axis, and shifted 7 units to the left.

According to the question,

We have the following information:

F(x) = x² and G(x) = -1/4 (x+7)²

Now, the graph of G(x) will be the graph of F(x) but there will be certain changes in the graph according to its function.

Now, in this function, 7 is added to x then it means that it will shift 7 units to left.

There is a negative sign before the function which says that is flipped over the x-axis.

Now, the factor 1/4 in the multiplication says that it has been compressed.

Hence, the correct option is D.

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Identify the slope and y-intercept for the following equation.
-2y-10+2x=0
Slope:
Y-intercept:

Answers

Slope: 1
Y-intercept: -5

Find the nth term of this quadratic sequence
4, 9, 16, 25, 36, ..

Answers

The nth term of this quadratic sequence 4,9,16,25,36 is [tex]n^{2} + 2n + 1[/tex]

Given that:

the given sequence is 4,9,16,25,36

nth term of quadratic sequence is [tex]an^{2}+bn+c[/tex]

Now lets find out the value of each variable a,b,c

a = second difference divide by 2

lets find out second difference

4,9,16,25,36

the first difference between the terms are

5,7,9,11

The second difference between the terms

2,2,2

the value of a = second difference / 2

[tex]a = \frac{2}{2} = 1\\[/tex]

a = 1

Now we find the value of b

3a + b = first term of first difference

3a + b = 5

3(1) + b = 5

3 + b = 5

b = 5 - 3

b = 2

Now find the value of c

a + b + c = first term

a + b + c = 4

1 + 2 + c = 4

3 + c = 4

c = 1

Now we replace all the values to find the nth term

 [tex]an^{2}+bn+c\\ \\n^{2}+2n+1[/tex]

Hence the answer is the nth term of this quadratic sequence 4,9,16,25,36 is [tex]n^{2} + 2n + 1[/tex].

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HELP MEEEEE PLEASEE TYYY

Answers

Answer:

4 metters por el significado

Giving 50 points :)))


Pls need help on #7!!!

Answers

Answer:

6

Step-by-step explanation:

Each coordinate is six times the corresponding coordinate in the preimage.

-18t=-3(t+5) distributive property and using division first HELP PLEASE

Answers

Answer: T= 1

Step-by-step explanation:

I need help please!!

Answers

Answer:

1/2

Step-by-step explanation:

(-6-(-4)/(3-7)

(-6+4)/-4

-2/-4

1/2

the sides of a square are dilated by a scale factor of 1/2. the perimeter of the bigger square is 24 ft. what is the perimeter of the smaller square? A. 48 feet B. 12 feet C. 8 feet D. 4 feet

Answers

The perimeter of the smaller square would be = 12feet. That is option B.

What is perimeter?

Perimeter can be defined as the summation of all the sides and edges of an object.

Scale factor is also defined as the ratio of difference between an original object and a newly formed object.

A square has four sides and it's perimeter = 24 ft

This means that the sides of the square= 24/4 = 6ft.

If the original (smaller square) dialted by a factor of 1/2 to have 6 ft as its sides, it means that it's original side of the small square is 3ft.

This is because to form the bigger square, 1/2 × 6 = 3ft.

Therefore, the perimeter of small square = 3+3+3+3 = 12ft.

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Which of the following is true of prime numbers?
A.
A prime number may be an even number or an odd number.
B.
A prime number is always an even number.
C.
A prime number is always an odd number.
D.
A composite number may be an even number or an odd number.

Answers

Answer:

a is right (prime number is always a even number)

Answer:

A.

a prime number may be an even or an odd number

as a farmer who is interested in data-driven decision-making, you want to find out the effect of 3 fertilizers on the yield of your crop. which of the following hypothesis testing would you use to determine if there is any difference in the yield between the three fertilizers:

Answers

For a farmer interested in data-driven decision-making regarding effect of 3 fertilizers on the crop yield the hypothesis testing used to determine any potential difference in the yield between the three fertilizers is ANOVA test (Option C).

Hypothesis testing refers to the statistical inference method utilized to determine if the available data sufficiently supports a particular hypothesis. Hypothesis testing enables decision makes to establish probabilistic statements about population parameters. ANOVA test stands for Analysis of Variance and refers to a statistical test utilized to evaluate the difference between the means of more than two groups. A one-way ANOVA uses one independent variable and a two-way ANOVA uses two independent variables. As the farmers want to evaluate the difference between three fertilizers' effect on crop yield, the appropriate test is ANOVA test.

Note: The question is missing options which are a) Two sample t-tests. b) Paired t-test. c) ANOVA test. d) One sample t-test.

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5. A parabola has a directrix of y = -3 and a vertex
at (2,1). Which ordered pair is the focus of the
parabola?

Answers

The ordered pair of the force of the parabola will be (2, -1).

What is the parabola?

It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.

A parabola has a directrix of y = - 3 and a vertex at (2,1).

Since the directrix is upward, utilize the condition of a parabola that opens up or down.

(x − h)² = 4p(y − k)

The separation from the concentration to the vertex and from the vertex to the directrix is |p|. Deduct the worth of the directrix from the y direction of the vertex to track down p.

p = − 1 + 1 / 2

p = − 1/2

Then the equation is given as,

(x − 2)² = 4(1/2)(y + 1)

(x − 2)² = 2(y + 1)

The ordered pair of the force of the parabola will be (2, -1).

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For his phone service, Chang pays a monthly fee of $27, and he pays an additional $0.07 per minute of use. The least he has been charged in a month is
$121.71.
What are the possible numbers of minutes he has used his phone in a month?
Use m for the number of minutes, and solve your inequality for m.

Answers

1353 numbers of minutes he has used his phone in a month.

What do you mean by algebraic expression?

In mathematics, an algebraic expression is an expression composed of integer constants, variables, and algebraic operations (addition, subtraction, multiplication, division, and exponentiation by exponents that are rational numbers).

Algebraic equations are equations that contain only algebraic expressions.

Algebraic expression is the idea of ​​using letters or alphabets to represent numbers without specifying the actual value. Algebra Basics taught us how to use letters like x, y, and z to represent unknown values. These characters are called variables here.

It is given that Chang pays a monthly fee of $27, and he pays an additional $0.07 per minute of use.

Let m be the additional minutes

Then charge for additional minutes is $0.07m

Now , it is also given that least he has been charged in a month is

$121.71.

⇒ 0.07m + 27 = 121.71

⇒ 0.07m = 121.71 - 27

⇒ 0.07m = 94.71

⇒ m = 94.71/0.07 = 1353

Therefore, 1353 numbers of minutes he has used his phone in a month.

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the life expectancy of a particular brand of tire is normally distributed with a mean of 30,000 and a standard deviation of 6,000 miles. what is the probability that a randomly selected tire will have a life of at least 38,100 miles? a. 0.9115 b. 0.4115 c. 0.5885 d. 0.0885

Answers

The probability that a randomly selected tire will have a life of at least 38,100 miles is 0.9115.

What is probability?

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.

Let, the life expectancy of a particular brand of tire is normally distributed with a mean of 30,000 and a standard deviation of 6,000 miles.

So, μ = 30000, σ = 6000, x = 38100.

Therefore,

z  = (x - μ) / σ

   = (38100 - 30000) / 6000

   = 8100 / 6000

   = 81 / 60

z  = 1.35

Now,

P(X = 38100) = P(z = 1.35) = 0.9115

Hence, the probability that a randomly selected tire will have a life of at least 38,100 miles is 0.9115.

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PLEASE ANSWER I WILL MARK BRAINLIEST!!!!!!

Deon throws a ball into the air. The height h of the ball in meters at time T seconds is modeled by the function h(t) =-5t^2+9t+2. will the ball reach a height of 5 m??

(Also what is the discriminant)

Answers

It is possible that the ball may reach a height of 5 meters in accordance with the quadratic formula.

May the ball reach a height of 5 meters?

The height of the ball as a function of time is represented by a quadratic equation, in which we must determine if the ball may reach a height of 5 meters. First, substitute the height in the quadratic equation:

- 5 · t² + 9 · t + 2 = 5

5 · t² - 9 · t + 3 = 0

Second, use the quadratic formula to determine the roots of the resulting quadratic equation:

t = - (- 9) / (2 · 5) ± [1 / (2 · 5)] · √[(- 9)² - 4 · 5 · 3]

t = 9 / 10 ± (1 / 10) · √(81 - 60)

t = 9 / 10 ± √21 / 10

t = (9 ± √21) / 10

Since all roots of the quadratic equations are real, then the ball can reach a height of 5 meters above the ground.

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Tyrone can type 87 words in three minutes at this rate how long will it take him to type 1624 words

Answers

we can set up a division problem to determine how long it will take tyrone to type 1624 words. However, first we will need to determine how many words he can type in 1 minute.
87 words / 3 minutes = 29 words per minute
1624 words / 29 words per minute = 56 minutes
*notice how the final units is minutes because the unit “words” cancels out since it is found in both the numerator and denominator.*
hope this helps!

the food and drug administration (fda) is a u.s. government agency that regulates (you guessed it) food and drugs for consumer safety. one thing the fda regulates is the allowable insect parts in various foods. you may be surprised to know that much of the processed food we eat contains insect parts. an example is flour. when wheat is ground into flour, insects that were in the wheat are ground up as well. the mean number of insect parts allowed in 100 grams (about 3 ounces) of wheat flour is 75. if the fda finds more than this number, they conduct further tests to determine if the flour is too contaminated by insect parts to be fit for human consumption. the null hypothesis is that the mean number of insect parts per 100 grams is 75. the alternative hypothesis is that the mean number of insect parts per 100 grams is greater than 75. is the following a type i error or a type ii error or neither?

Answers

Since in the question we reject the alternative hypothesis hence type II error occurs.

What is Type I error?

When the null hypothesis is true but rejected in hypothesis testing, type 1 errors often confused with false positives occur. A general assertion or default attitude that there is no connection between two measurable phenomena is known as the null hypothesis.

What is Type II error?

Type II errors take place when you fail to reject the null hypothesis even though it is untrue.

The average number of insect parts per 100 gm in this problem is 75. This number cannot be demonstrated by the test to be larger than 75. This indicates that the test is producing a "false negative" since it is not detecting these insect parts.

Hence, this is a Type II error.

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how many numbers must be randomly selected from the set \{1,3,5,7,9,11,13,15\}{1,3,5,7,9,11,13,15} to guarantee that at least one pair of these numbers add up to 1616?

Answers

The number of pairs that must be randomly selected from the set {1,3,5,7,9,11,13,15} to guarantee that at least one pair of these numbers add up to 16 is 5.

In the given set {1,3,5,7,9,11,13,15}, there are four pairs that sum up to 16, which are (1,15), (3,13), (5,11), and (7,9). Let k numbers be picked from the set. Consider k = 5, then using the pigeonhole principle, for one of the pairs described above, both of the endpoints must have been picked. Hence, if 5 numbers are picked from the set, then there exists a pair with a sum of 16.

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Given (x – 7)^2 = 36, select the values of x.
x = 13, x = 1, x = –29, x = 42

Answers

Answer:

x = 13  x = 1

Step-by-step explanation:

(13-7) = 6

6^2 = 36

1-7 = -6

(-6)^2 = 36

the diameter of a circle is 24 feet. what is the approximate circumference of the circle? use 3.14 for pie​

Answers

Circumference = pi x d

Circumference = 3.14 x 24 =  75.36

I hope this helps!

The relative frequency table describes the relationship between students who completed an exam review and their performance on the exam.


Passed exam Did not pass exam. Row Totals
Completed exam review 55% 10% 65%
Did not complete exam review 20%. 15% 35%
Column Totals 75% 25%. 100%


Part A: What is the percentage of students who passed the exam, given that they completed the exam review? Round to the nearest percentage. (2 points)

Part B: What is the percentage of students who passed the exam, given that they did not complete the exam review? Round to the nearest percentage. (2 points)

Part C: Is there an association between passing the exam and completing the exam review? Justify your answer. (2 points)

Answers

a) The percentage of students who passed the exam, given that they completed the exam review is of 73%.

b) The percentage of students who passed the exam, given that they did not complete the exam review, is of 27%.

c) There is a positive association between passing the exam and completing the exam review.

How to obtain the percentages?

A percentage is obtained by the division of the desired amounts by the total amounts, multiplied by 100%.

For item a, these amounts are given as follows:

Desired: 55% that passed and completed the exam review.Total: 75% that passed.

Hence the percentage is of:

p = 55/75 = 0.73 = 73%.

For item b, these amounts are given as follows:

Desired: 20% that passed and did not completed the exam review.Total: 75% that passed.

Hence the percentage is of:

p = 20/75 = 0.27 = 27%.

There is a positive association between passing the exam and completing the exam review, as the percentage of students who passed completing the review, found in item a, is greater than the percentage of students who passed without completing the review, found in item b.

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An element with a mass of 200 grams decays by 15.7% per minute. To the nearest minute, how long will it be until there are 60 grams of the element remaining?

Answers

Answer:

3.82%

Step-by-step explanation:

I need help please!!!

Answers

the slope of the given point is m=−3/4

help please/////////////////////////////////////////////////////////

Answers

Answer:

tan 25° = b / 8 m

Step-by-step explanation:

You need to know what the ratios are.

sin X = opp/hyp

cos X = adj/opp

tan X = opp/adj

For angle B, the opposite leg is b, ad the adjacent leg is 8 m.

The hypotenuse is AB.

sin B = sin 25° = opp/hyp = b/AB

tan B = tan 25° = opp/adj = b / 8 m

algebra 2 please help fast!!

Answers

The zeroes of the polynomial are -2,1,3,-1

What are the zeroes of the polynomial?

The locations where a polynomial becomes 0 overall are known as the zeros of the polynomial. The term "zero polynomial" refers to a polynomial with a value of zero (-1). The largest power of the variable x is referred to as a polynomial's degree.

How do you find the zeroes of the polynomial?

In general, the value of P(k) at x = k is denoted by P(k), and it can be found by substituting x by k in P if P(x) is a polynomial in x and k is any real number. The real number k is referred to as the zero of a polynomial P(x) if P(k) = 0.

Given:- The polynomial is f(x)=(x+2)(x-1)(x-3)(x+1)

The polynomial is divided into its factors

we equate each of the factors with the term 0

x+2=0

x=-2

x-1=0

x=1

x-3=0

x=3

x+1=0

x=-1

Hence the zeroes of the polynomial f(x)=-2,-2,1,3

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How do you approximate on a calculator?

Answers

Answer:

enter a function and from there you approximate hope it helps

Rewrite the following equation in slope-intercept form.
y + 9 = – (x + 10)
Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

The slope-intercept form of the equation can be written as y = -x - 19

Slope - Intercept Form

The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept( the y-coordinate of the point where the line intersects the y-axis). Equation of line is the equation that is satisfied by each point that lies on that line.

The equation given is y + 9 = -(x + 10)

Rewriting this equation in y = mx + c format;

y + 9 = -(x + 10)

y + 9 = -x - 10

y = -x - 10 - 9

y = -x - 19

The equation is y = -x - 19

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Convert 1.57 x 1024 atoms of carbon to moles of carbon. I need help right now please!! the population is decreasing at a rate of 2%2% per year. if the population is 28,80028,800 today, what will the population be in 99 years? round your answer to the nearest whole number, if necessary. A map of a rectangular park has a length of 4 inches and a width of 6 inches. It uses a scale of 1 inch for every 30 miles.What is the actual length of the park in miles? What is the actual width of the park in miles? milesWhat is the actual area of the park in square miles? miles squared Jocelyn estimates that a piece of wood measures 5. 5 cm. If it actually measures 5. 62 cm, what is the percent error of jocelyns estimate?. how is the romantic characteristic of a common day place described in lines composed a few miles above tintern abbey? group of answer choices using a supernatural vision using imagery of noise in the town describing a cottage orchard with unripe fruit comparing the actions of souls What is individual shared responsibility payment for California? Which is equivalent to 644 ? How meritocracy is defined today? Suppose there is a 18.5% probability that a randomly selected person aged 35 years or older is a jogger. In addition, there is a 21.2% probability that a randomly selected person asked 35 years or older is male, given that he or she jogs. What is the probability that randomly selected person aged 35 years or older is male and jogs? Would it be unusual to randomly select a person aged 35 years and older who is male and jogs? can someone pls help me 4x^{2}+16y^{2}-24x+64y+36=0The center is:The vertices are:The foci are: you are using a password attack that tests every possible keystroke for each single key in a password until the correct one is found. which of the following technical password attacks are you using? paola is thinking of opening her own business. for each of the production inputs listed below, indicate whether the input incurs an implicit cost, explicit cost, or no cost.a. Rent: b. Wages: c. Owned equipment: Need help solving problem The distance between Newfoundland, Canada, and Ireland is roughly 3,320 kilometers. If the Mid-Atlantic Ridge is spreading at 4 cm/year (0.00004 km/year) in that area, how long ago did the Atlantic Ocean separate Canada from Ireland? WeatherWhat happens in a low-pressure system? (1 point)O The wind has less intensity.O The sky is clear.O There is no precipitation.Temperature changes. where do you go to access quickbooks online training materials for your clients? Translate this sentence into an equation. 53 is the sum of 22 and Han's height. Use the variable h to represent Han's height. The missing quantity in the double number line