2 years ago

A video game randomly chooses your car color and type. The probability of

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

8 0

Maybe it is A i’m not 100 percent sure though

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Find difference 7 7/8-3 1/4

umka2103 [35]

So first convert to improper fractions
7 and 7/8=7+7/8=56/8+7/8=63/8

3 and 1/4=3+1/4=12/4+1/4=13/4

so nowe we have
63/8+13/4
convert bottom number to same
which is 8
13/4 times 2/2=26/8
now we have
63/8-26/8=37/8=4 and 5/8
answer is 4 and 5/8

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2 years ago

Simplify the given expressions. express all answers with positive exponents. b^2/3 b^1/2

mixas84 [53]

I am assuming 33 is B^(2/3) times B^(1/2)
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3 years ago

If the area of a triangle is 36 in.^2in.

disa [49]

C. 8 inches. I hope I'm not too late

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2 years ago

What is the annual salary for someone who earns a bimonthly salary of $863.00?

kherson [118]

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2 years ago

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The heights of a random sample of 100 women are recorded. The sample mean is 65.3 inches and the sample standard deviation is 3

Keith_Richards [23]

Answer: B. $65.3\pm(2)(0.3)$

Step-by-step explanation:

The confidence interval for the population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 100

Sample mean : $\overline{x}=65.3\text{ inches}$

Standard deviation: $\sigma=3 \text{ inches}$

Level of confidence = 0.95

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Then, 95% confidence interval for the population mean will be :-

$65.3\pm (1.96)\dfrac{3}{\sqrt{100}}\\\\\approx65.3\pm(2)(\dfrac{3}{10})=65.3\pm(2)(0.3)$

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2 years ago

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