All categories

2 years ago

Which of these can be written as an equation?

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

6 0

Your answer would be choice b

You might be interested in

I need help with this...who can help me?

mars1129 [50]

Answer:

Step-by-step explanation:

3 x 4

3 is how far the shape goes to the left.

4 is how far it goes to the bottom

you multiply the two numbers to cover the area

4 0

3 years ago

Please help me. I am stuck.

dalvyx [7]

C is greater than or equal to $40 (which means put the > sign with a line under it).

4 0

2 years ago

Use the quadratic formula to solve for x. 4x²–5x-2 = 0

Luda [366]

The answer is for the formula

4 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

2 years ago

As jupiter revolves around the sun, it travels at a speed of approximately 8 miles per second. convert this speed to miles per m

Mama L [17]

Did you look on quizlet

5 0

2 years ago