Question

I need help!!! I can give you 15 coins!!​

Answer 1

Answer:

1. d ≈ 19

2. a ≈ 39.00°

3. x ≈ 37°

Step-by-step explanation:

1) Using sine to find d, recall that sine = opposite side/hypotenuse. So:

$sin(39) = \frac{d}{30}$

Cross multiply:

d = 30 (sin(39))

d ≈ 19

2) To find the measure of the angle, we can use sine because we have the opposite side and hypotenuse measures. So:

$sin(a) = \frac{18.88}{30}$

Using the inverse of sine:

$a = sin-1(\frac{18.88}{30})$

Input into calculator:

a ≈ 39.00°

3) To find the measure of the angle, we can use tangent because we have the opposite side and adjacent side measures. So:

$tan(x) = \frac{300}{400}$

Using inverse of tangent:

$x = tan-1 (\frac{300}{400})$

Input into calculator:

x ≈ 37°