Question

Substitute: StartFraction sine (45 degrees) Over a EndFraction = StartFraction sine (77 degrees) Over 8 EndFraction .

Answer 1

Answer:

a=5.81

Step-by-step explanation:

We want to solve for the value of a in the expression:

$\frac{sin 45}{a}=\frac{sin 77}{8}$

Cross Multiply

8 X sin 45=a X sin 77

Divide both sides by sin 77° to obtain a.

$a=\frac{8 X sin 45}{sin 77}$

a=5.81