3 years ago

You have to solve for X

Mathematics

1 answer:

liubo4ka [24]3 years ago

5 0

Answer:

x = 5/8

Step-by-step explanation:

(1/2) / 4 = x / 5
1 / 8 = x / 5
x = 5 / 8

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Answer:

Step-by-step explanation:

Multiply the number of items with each other.

3 hats • 2 pairs of glasses • 2 mustaches

= 3 • 2 • 2

= 12

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3 years ago

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3 years ago

Need answers ASAP 15 points!

VLD [36.1K]

Answer:

Step-by-step explanation:

Part A: 5/26

Part B: 5/26+ 1/2 which is 18/26 or 9/13

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3 years ago

A medical researcher says that less than 87â€‹% of adults in a certain country think that healthy children should be required to

Lyrx [107]

Answer: It is not enough evidence to support the researcher's claim.

Step-by-step explanation:

Since we have given that

n = 500

$\hat{p}=0.85$

So, the hypothesis are as follows:

$H_0:\hat{p}$

So, the z value would be

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.85-0.87}{\sqrt{\dfrac{0.87\times 0.13}{500}}}\\\\z=\dfrac{-0.02}{0.015}\\\\z=-1.33$

At α = 0.05

z= -1.64

So, 1.64<-1.33

So, we accept the null hypothesis.

Hence, it is not enough evidence to support the researcher's claim.

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3 years ago