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3 years ago

1,200. / 500 = 2 2.4 2.400

Mathematics

1 answer:

Mashutka [201]3 years ago

6 0

2.400 is your anwser

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alexira [117]

Answer: C

Step-by-step explanation:

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2 years ago

Read 2 more answers

A round mirror has a circumference of 87.92 inches. Calculate the area of the mirror.

Zarrin [17]

$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=87.92 \end{cases}\implies 87.92=2\pi r\implies \cfrac{87.92}{2\pi }=\boxed{r} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2~\hspace{7em}A=\pi \left( \boxed{\frac{87.92}{2\pi }} \right)^2 \\\\\\ A=\pi \cdot \cfrac{87.92^2}{4\pi^2}\implies A=\cfrac{87.92^2}{4\pi }\implies A\approx 615.127998$

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3 years ago

What is 1 1/2 + 1/4 + 2 2/3?

Pachacha [2.7K]

Answer:

4 5/12.

Step-by-step explanation:

<u>Solve:</u>

1 1/2 + 1/4
= 1/4 + 2 2/3
= 9/12 + 2 8/12
= 3 17/12
= 4 5/12.

Answer is 4 5/12.

4 0

2 years ago

Suppose a bowler claims that her bowling score is not equal to 150 points, on average. Several of her teammates do not believe h

Juliette [100K]

Answer:

The test statistic (z-score) of this one-mean hypothesis test is z=1.823.

Step-by-step explanation:

The null and alternative hypothesis are:

$H_0: \mu=150\\\\H_a: \mu\neq 150$

The significance level is 0.05.

The sample size is n=22.

The sample mean is M=157.

The standard deviation is 18.

The z-score can be calculated as:

$z=\frac{M-\mu}{\sigma/\sqrt{n}}=\frac{157-150}{18/\sqrt{22}} =\frac{7}{3.84} =1.823$

The test statistic (z-score) of this one-mean hypothesis test is z=1.823.

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3 years ago

Help please ill give brainliest promise

Otrada [13]

Answer: C

Step-by-step explanation:

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3 years ago