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3 years ago

Idk how to do this equation

Mathematics

1 answer:

AveGali [126]3 years ago

7 0

The answer to your question is car A because every 1 gallon o gas it goes 33 MPH, car A also uses the least amount of gas. Hope this helps! ;D

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What is the answer to 5 1 x 10=when it involves multiplication do you times first and then add?

fiasKO [112]

5+1 times 10=???

order of operations
multiplcation comes before addition
so yes, multiply first

5+1 times 10=5+10=15

7 0

3 years ago

80 is 50% of what number

KonstantinChe [14]

Answer:

80 is 50% of 160.

Step-by-step explanation:

In order to find this, we take the whole number and divide by the percentage that it represents. This gives us the number we are looking for.

80/50%

80/.50

160

3 0

3 years ago

Read 2 more answers

Find the length of BC.

STatiana [176]

Answer:

ki.f,gxjnbvb

Step-by-step explanation:b nn n vhhhvb bhv hv

3 0

3 years ago

A Roper survey reported that 65 out of 500 women ages 18-29 said that they had the most say when purchasing a computer; a sample

8090 [49]

Answer:

Step-by-step explanation:

Step(i):-

Given first random sample size n₁ = 500

Given Roper survey reported that 65 out of 500 women ages 18-29 said that they had the most say when purchasing a computer.

First sample proportion

$p^{-} _{1} = \frac{65}{500} = 0.13$

Given second sample size n₂ = 700

Given a sample of 700 men (unrelated to the women) ages 18-29 found that 133 men said that they had the most say when purchasing a computer.

second sample proportion

$p^{-} _{2} = \frac{133}{700} = 0.19$

Level of significance = α = 0.05

critical value = 1.96

Step(ii):-

Null hypothesis : H₀: There is no significance difference between these proportions

Alternative Hypothesis :H₁: There is significance difference between these proportions

Test statistic

$Z = \frac{p_{1} ^{-}-p^{-} _{2} }{\sqrt{PQ(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }$

where

$P = \frac{n_{1} p^{-} _{1}+n_{2} p^{-} _{2} }{n_{1}+ n_{2} } = \frac{500 X 0.13+700 X0.19 }{500 + 700 } = 0.165$

Q = 1 - P = 1 - 0.165 = 0.835

$Z = \frac{0.13-0.19 }{\sqrt{0.165 X0.835(\frac{1}{500 } +\frac{1}{700 } )} }$

Z = -2.76

|Z| = |-2.76| = 2.76 > 1.96 at 0.05 level of significance

Null hypothesis is rejected at 0.05 level of significance

Alternative hypothesis is accepted at 0.05 level of significance

Conclusion:-

There is there is a difference between these proportions at α = 0.05

3 0

3 years ago

The sum of x to the sixth power and 3 times x

Verdich [7]

Crack open up the book

6 0

3 years ago