What is the edge of a cube whose volume is 46656cm cube

1 answer:

3 0

The answer is: I don't really know. YOU DIDN'T GIVE A SIDE SO BOW AM I SUPPOSED TO KNOW!!!!!!!!!!!!!!!!!!!!!!

You have to give a side first.

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R(x) = (500 + ax) (50 - bx)

o-na [289]

Answer:

−

500

−

√

250000

2500

−

100

1000

50000

Step-by-step explanation:

4 0

2 years ago

A true/false test has 40 questions. Suppose a passing grade is 30 or more correct answers. Test the claim that a student knows m

Angelina_Jolie [31]

Answer:

z≈3.16

p≈0.001

we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.

Step-by-step explanation:

As a result of step 2, we can assume normal distribution for the null hypothesis

z statistic is computed as follows:

z= $\frac{X-M}{\frac{\sqrt{p*(1-p)} }{\sqrt{N} } }$ where

X is the proportion of correct answers in the test ( $\frac{30}{40}$ )
M is the expected proportion of correct answers according to the null hypothesis (0.5)

p is the probability of correct answer (0.5)
N is the total number of questions in the test (40)

z= $\frac{0.75-0.50}{\frac{\sqrt{0.5*(0.5)} }{\sqrt{40} } }$ ≈ 3.16

And corresponding p value for the z-statistic is p≈0.001.

Since p<0.05, we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.

7 0

3 years ago

Can someone help me please? Quick.

lubasha [3.4K]

That’s really rude man, be nice to people

5 0

2 years ago

What is 2/9 = 4/x+8 i dont get this fraction solving

Dmitriy789 [7]

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$\frac{2}{9} = \frac{4}{x + 8} \\$