3 years ago

Select from the given unit rates to match with each quantity

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

5 0

Answer:

what the question

Step-by-step explanation:

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2 + 6 (x — 4) = 3х - 18 + Зx

Scorpion4ik [409]

Your answer would be -22 = -18

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2 years ago

Read 2 more answers

Jason puts $30 worth of gas in his truck. The price per gallon was $2.50. Which equation can be solved to find the number of gal

tankabanditka [31]

So, this is a rate problem, so the forumla we would get is

2.5g=30

(Note this is not one of the choices), so if we look, there is an equivelent equation.

If we divide both sides by g we get

2.5=30/g

B is the correct answer

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3 years ago

What is the area of the regular polygon shown below?

Alexxx [7]

8 times 8 so 64 is your answer :) hope this helps

7 0

2 years ago

Assume that a sample is used to estimate a population proportion μ . Find the margin of error M.E. that corresponds to a sample

hichkok12 [17]

Answer:

$MoE = 1.645\cdot \frac{13.1}{\sqrt{772} } \\\\MoE = 1.645\cdot 0.47147\\\\MoE = 0.776\\\\$

Step-by-step explanation:

Since the sample size is quite large, we can use the z-distribution.

The margin of error is given by

$MoE = z_{\alpha/2}(\frac{s}{\sqrt{n} } )$

Where n is the sample size, s is the sample standard deviation and $z_{\alpha/2}$ is the z-score corresponding to a 90% confidence level.

The z-score corresponding to a 90% confidence level is

Significance level = α = 1 - 0.90= 0.10/2 = 0.05

From the z-table at α = 0.05

z-score = 1.645

$MoE = 1.645\cdot \frac{13.1}{\sqrt{772} } \\\\MoE = 1.645\cdot 0.47147\\\\MoE = 0.776\\\\$

Therefore, the margin of error is 0.776.

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3 years ago

Find the value of the expression 9.16 + k for k = 9.

maria [59]

Answer:

18.16

Step-by-step explanation:

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3 years ago