Mathematics, 10.05.2021 01:30, samantamartinez

1) For what values is the statement true? sin(x+20)°=cos(y−10 x=20, y=60

x=20, y=50

x=30, y=40

x=30, y=60

2)In right triangle ABC with right angle C, sinA=4/5 and cosA=3/5. What is sinB+cosB?

1/5

7/5

35/12

5/7

3)In a right triangle ABC where sinA=cosB, what are the measures of acute angles A and B if the measure of angle A is three times the measure of angle B?

The measure of angle A is 67.5° and the measure of angle B is 22.5°.

The measure of angle B is 135° and the measure of angle A is 45°.

The measure of angle A is 135° and the measure of angle B is 45°.

The measure of angle B is 67.5° and the measure of angle A is 22.5°.

4)What is the value of b that makes the equation cos(17b+26)°=sin(15b)° true?

13

2

9.5

3

Answers: 1

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1) For what values is the statement true? sin(x+20)°=cos(y−10 x=20, y=60

x=20, y=50