3 years ago

Here are the temperatures of a glass of warm water after it's put in a freezer please help

Mathematics

1 answer:

zavuch27 [327]3 years ago

7 0

Answer:

C(t)= 80 · (0.9)^t

Step-by-step explanation: Its the correct one on khan academy

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klemol [59]

Answer:

J) 2.4

Step-by-step explanation:

8[6.3-4(1.5)] Simplify the expression 2.4

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3 years ago

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtain

slega [8]

Answer: 8359

Step-by-step explanation:

The formula for sample size needed for interval estimate of population proportion :-

$n=p(1-p)(\frac{z_{\alpha/2}}{E})^2$

Given : The significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}}=z_{0.025}=\pm1.96$

Previous estimate of proportion : $p=0.32$

Margin of error : $E=0.01$

Now, the required sample size will be :-

$n=0.32(1-0.32)(\frac{1.96}{0.01})^2=8359.3216\approx8359$

Hence, the required sample size = 8359

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3 years ago

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B. 0.09 miles per minute

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3 years ago

Find the z-score such as 88% of the area under the normal curve is to the left of the z-score

jok3333 [9.3K]

If you have a calculator with statistical functions, that's the way to go.

On my TI-83, I typed in invNorm(0.88) and got the result z = 1.17.

88% of the area under the normal curve is to the left of z = 1.17.

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3 years ago

Help me please. This is due at 12 tonight

allochka39001 [22]

I think the answer is c

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3 years ago

Read 2 more answers