Which equation correctly uses the value of b to solve for a?

Mathematics

2 answers:

olchik [2.2K]3 years ago

5 0

Answer:

The answer is C on Edge 2020

Step-by-step explanation:

Likurg_2 [28]3 years ago

3 0

Answer:

$\tan(22.6)=\frac{a}{12}$

Step-by-step explanation:

We know that $\cos(22.6)=\frac{b}{13}$ . Rounding the value of b as asked in the problem gives b=12.

From the right-triangle definition of cosine, b must be the adjacent side to the angle 22.6º and the hypothenuse of the triangle must be 3.

Then, a is the opposite side of the angle 22.6º therefore using the definition of sine, $\sin(22.6)=\frac{a}{3}$ . Solving for a, we obtain $a=3 sin(22.6)=3\cos(22.6)\tan(22.6)=b\tan (22.6)=12\tan(22.6)$ .

We conclude that $\tan(22.6)=\frac{a}{12}$ .

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The perimeter of a rectangular pool is 180 yes. The length is 10yds more than the width. Find the length and the width of the po

White raven [17]

Answer:

Width: 85 yards

Length: 95 yards

Step-by-step explanation:

Ok, so we need to make an equation for this problem. Let's call the width, w. We know that the length is 10 more than the width, so we can call it w +10.

180 = w + w + 10

Now, i order to isolate the w's we need to subtract 10 from each side.

170 = 2w

Now, we just have to divide by 2 on both sides.

W = 85

So we now know that the width is 85 and because the length is 10 more, the length is 95 yds.

7 0

3 years ago

Sin5A/SinA-cos5A/cosA=4cos2A

irina1246 [14]

Answer:

See Explanation

Step-by-step explanation:

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