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4 years ago

15

How can you check if drew the right graph

1 answer:

crimeas [40]4 years ago

5 0

If [ 2x + 6y = 18 ] was the equation you were supposed to graph, then #3 is the way to go. If it was some other equation, then you would have to slog through BOTH #1 and #2 tobe sure.

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0.25(4x - 4) = 2x + 1

lina2011 [118]

Answer:

x=-2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

PLEASE PLEASE HELP!!!! THANK YOU

koban [17]

6.2, 7.0

To find the common difference between two outputs you will subtract the current output number from the proceeding number. Ex 5.4 - 4.6 = 0.8 and 4.6 - 3.8 = 0.8. Because they are the same value it means the function increases at a rate of 0.8 for each input of a.

so 5.4 + 0.8 = 6.2

and 6.2 +0.8 = 7.0.

8 0

3 years ago

you decide to go bowling at Bowlero on Friday night. it costs $7 for the shoe rental plus $5 for each game. what will your total

ICE Princess25 [194]

Answer:

7 + 5x = X

Step-by-step explanation:

i dont know how many games but use this equation

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3 years ago

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Express the area A of a circle as a function of its radius, r. Determine the area of a circle whose radius is 11 inches. That

nekit [7.7K]

<h2>Answer with explanation:</h2>

The function represents the area of a circle(A) is given by :-

$A(r)=2\pi r$

To determine the area of a circle whose radius is 11 inches. , we put the value of r=11 inches, we get

$A(11)=2\pi (11)$

Now, we put $\pi=\dfrac{22}{7}$ in the above function , we get

$A(11)=2(\dfrac{22}{7} )(11)\\\\\Rightarrow\ A=56.5714285714\approx56.57$

8 0

3 years ago

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h

stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a) we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

$Score = 64 \times \frac{1}{5} = 12.8$

Hence, the expected score is 12.8

Part (b) Compute the variance and standard deviation of x.

Standard Deviation: $\sigma =\sqrt{npq}$

Now calculate the standard deviation as shown:

$\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}$

$\sigma =\sqrt{\frac{256}{25}}$

$\sigma =\frac{16}{5}=3.2$

Variance: $\sigma^2 =npq$

$\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}$

$\sigma^2 =\frac{256}{25}$

$\sigma^2 =10.24$

Hence, the standard deviation is 3.2 and variance is 10.24

5 0

3 years ago