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I kinda forgot how to do this so pleaseeeeeeeeee help meeeeeeeee!!!
∠A and ∠B are acute angles of a right triangle. If sin A = x + 2 and cos B = 2x – 5, determine the value of x.

Respuesta :

Answer:

x= 7

Step-by-step explanation:

[tex]\boxed{ \sinθ = \frac{opp}{hyp} }[/tex]

[tex] \sin A = \frac{a}{c} [/tex]

[tex] \frac{a}{c} = x + 2[/tex]

[tex]\boxed{ \cosθ = \frac{adj}{hyp} }[/tex]

[tex] \cos B = \frac{a}{c} [/tex]

[tex] \frac{a}{c} = 2x - 5[/tex]

Equating both expressions for a/c together:

x +2= 2x -5

Bring x terms to 1 side, constants to the other:

2x -x= 2 +5

x= 7

Ver imagen Leora03

Answer:

X=7

Step-by-step explanation:

Hi, I took the quiz and the right answer is x=7.