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2 years ago

Which describes the correct way to convert minutes hours

Mathematics

2 answers:

zmey [24]2 years ago

7 0

Since there are 60 minutes in an hour, you divide by 60.

masha68 [24]2 years ago

5 0

60 minutes=1 hour, so to convert minutes to hours, divide by 60.

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Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal plac

Fed [463]

Answer:

$\theta=k\pi, \hspace{3}k\in Z\\\\ or\\\theta =2\pi k \pm arccos(\frac{1 }{8} ), \hspace{3}k\in Z\\$

Step-by-step explanation:

Factor constant terms:

$-2(-4sin(2\theta)+sin(\theta))=0$

Divide both sides by -2:

$sin(\theta)-4sin(2 \theta)=0$

Expand trigonometric functions using the fact:

$sin(2 \theta) =2 sin(\theta) cos(\theta)$

So:

$sin(\theta) -8sin(\theta)cos(\theta)=0$

Factor sin(x) and constant terms and multiply both sides by -1:

$sin(\theta) (8cos(\theta)-1)=0$

Split into two equations:

$(1)=8cos(\theta)-1=0\\\\(2)=sin(\theta)=0$

For (1)

Add 1 to both sides and divide both sides by 8:

$cos(\theta)=\frac{1}{8}$

Take the inverse cosine of both sides:

$\theta =2\pi k \pm arccos(\frac{1 }{8} ), \hspace{3}k\in Z$

For (2)

Simply take the inverse sine of both sides

$\theta = k \pi, \hspace{3}k\in Z$

Therefore, the solutions are given by:

$\theta=k\pi, \hspace{3}k\in Z\\\\ or\\ \theta =2\pi k \pm arccos(\frac{1 }{8} ), \hspace{3}k\in Z\\$

8 0

2 years ago

A psychologist collects data on the time, w, in minutes, people walk each day and their scores, t ,on a stress test. The scores

photoshop1234 [79]

C. The people in the study walked an average of 48.1 minutes each day.

8 0

2 years ago

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What is the measure of angle 5 if the measure of angle 2 is 37 degrees and the measure of angle 3 is 72 degrees

ahrayia [7]

Answer:

160 is a whole angle so 37+72=109 160-109=51

51 is your answer

Step-by-step explanation:

7 0

2 years ago

9 Questions/45 points

Finger [1]

You have a lot of questions here, try breaking them up into multiple posts and you may get more responses.

I will help with some.

(x+3)=0

The solution is just -3.
-----------------------------------------------------------------
3m(m-4)=0

The two solutions are 0 and 4.
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(r-3)(r+2)=0

The two solutions are and 3 and -2.

I hope this gets you started in the right direction.

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2 years ago

PLEASE HELP! ONLY ONE QUESTION [99 POINTS] SERIOUS ANSWER ONLY!!!

Whitepunk [10]

C) m = 8h

In the model, Kevin is earning $8 per hour he works.

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2 years ago

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