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soldi70 [24.7K]

3 years ago

11

A person who weighs 125 pounds on Earth would weigh 47 2/10 pounds on Mercury. Set up a proportion and solve using means and ext

remes to determine how much a child who weighs 50 pounds on Earth would weigh on mercury.

1 answer:

pogonyaev3 years ago

6 0

I hope this helps you

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A hot water tap filled a bath in 7 1/2 minutes,while a cold water tap fills it in 5 minutes,how long will it take to fill the ba

Kisachek [45]

Answer:

3 minutes

Step-by-step explanation:

Let's say that the bathtub is 15L

It would take 7.5 mins to fill 15L

15L/7.5 = 2L per minute

The other tap would take 5 minutes to fill 15L

15L/5 = 3L per minute

3L per minute + 2L per minute = 5L per minute

15L/5L per min = 3 minutes

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3 years ago

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Gre4nikov [31]

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3 years ago

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4 years ago

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Solve in |R 2cos(2x) +√2 = 0

Alexxx [7]

It is given that:

$\begin{gathered} 2\cos 2x+\sqrt[]{2}=0 \\ 2\cos 2x=-\sqrt[]{2} \\ \cos 2x=-\frac{\sqrt[]{2}}{2} \end{gathered}$

cos2x is negative square root 2 divided by 2 in the second and third quadrants, so it follows:

$\begin{gathered} \cos 2x=\cos \theta \\ 2x=2n\pi\pm\theta \end{gathered}$

Here theta is given by:

$\theta=\pi-\frac{\pi}{4}=\frac{3\pi}{4},\theta=\pi+\frac{\pi}{4}=\frac{5\pi}{4}$

So the solution is given by:

$\begin{gathered} 2x=2n\pi\pm\frac{3\pi}{4};2x=2n\pi\pm\frac{5\pi}{4} \\ x=n\pi\pm\frac{3\pi}{8};x=n\pi\pm\frac{5\pi}{8} \end{gathered}$

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1 year ago

Two functions are given below how does the graph of p compare with the graph of q

tankabanditka [31]

Answer:

The answer should be choice B.

Step-by-step explanation:

By using the process of elimination, you can cross out choices A and D.

According to the equation, the slope is of p(x) is smaller than q(x), thus q(x) will be steeper than q(x).

The valid answer is B because choice C is wrong.

4 0

3 years ago