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2 years ago

11

–42.3 ÷ 3.4 please explain step by step

1 answer:

stira [4]2 years ago

4 0

12.44 because it was keep change flip

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A 2-month membership to the gym costs $125. Jim would like to be a member for 8 months. What is the total amount he will pay for

ArbitrLikvidat [17]

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2 years ago

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A proofreader reads 200 pages in 8 hours. How many pages does the proofreader read in 30 minuets

umka21 [38]

If 200/8=25 per hour, then i divided that by 2 to get 12.5 for 30 minutes.

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3 years ago

Find the two small as possible solutions

solong [7]

Answer: $\bold{b)\quad \dfrac{5}{6},\ \dfrac{25}{6}}$

<u>Step-by-step explanation:</u>

$12cos\bigg(\dfrac{2\pi}{5}x\bigg)+10=16\\\\\\12cos\bigg(\dfrac{2\pi}{5}x\bigg)=6\\\\\\cos\bigg(\dfrac{2\pi}{5}x\bigg)=\dfrac{1}{2}\\\\\\cos^{-1}\bigg[cos\bigg(\dfrac{2\pi}{5}x\bigg)\bigg]=cos^{-1}\bigg(\dfrac{1}{2}\bigg)$

$\text{Use the Unit Circle to determine when}\ cos=\dfrac{1}{2}\quad \rightarrow \quad\text{at}\ \dfrac{\pi}{3}\ and \ \dfrac{5\pi}{3}\\\\\\\dfrac{2\pi}{5}x=\dfrac{\pi}{3}\qquad and\qquad \dfrac{2\pi}{5}x=\dfrac{5\pi}{3}\\\\\\\bigg(\dfrac{5}{2\pi}\bigg)\dfrac{2\pi}{5}x=\dfrac{\pi}{3}\bigg(\dfrac{5}{2\pi}\bigg)\quad and\quad \bigg(\dfrac{5}{2\pi}\bigg)\dfrac{2\pi}{5}x=\dfrac{5\pi}{3}\bigg(\dfrac{5}{2\pi}\bigg)\\\\\\.\qquad \qquad \large\boxed{x=\dfrac{5}{6}\qquad and \qquad x=\dfrac{25}{6}}$

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2 years ago

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HELP ASAP!!!<br> It’s timed.

wolverine [178]

The correct answer is A.

Hope this helps.

4 0

3 years ago

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How do you solve this?

SashulF [63]

Is that graph on top of it, for that equation>

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3 years ago