3 years ago

What is 8d(2d+8)+d squared Simplify THANKS GUYS

1 answer:

6 0

8*2=16
8*8=64
d+d+d=3d
16+64=80d3rd

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KatRina [158]

20 Feet long. Based on the given conditions, formulate: square root of 20 to the power of 2 +16 to the power of 2

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get the result: 20

Answer: 20

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2 years ago

liq [111]

I think the answer is A

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2 years ago

Alex Ar [27]

A. 7/3
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alexdok [17]

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2 years ago

Lilit [14]

Answer: 0.2643

Step-by-step explanation:

Given : The proportion of adults are unemployed : p=0.077

The sample size = 300

By suing normal approximation to the binomial , we have

$\mu=np=300\times0.077=23.1$

$\sigma=\sqrt{np(1-p)}=\sqrt{300\times0.077(1-0.077)}\\\\=4.61749932323\approx4.62$

Now, using formula $z=\dfrac{x-\mu}{\sigma}$ , the z-value corresponding to 26 will be :-

$z=\dfrac{26-23.1}{4.62}\approx0.63$

Using standard distribution table for z , we have

P-value= $P(z\geq0.63)=1-P(z$

$=1-0.7356527=0.2643473\approx0.2643$

Hence, the probability that at least 26 in the sample are unemployed =0.2643

6 0

2 years ago