Solve the triangle in the figure. Question options:

A)

BC = 9; m∠A = 53.1°; m∠B = 6.9°; m∠C = 90°

B)

BC = 11; m∠A = 42.8°; m∠B = 47.2°; m∠C = 90°

C)

BC = 19; m∠A = 36.9°; m∠B = 53.1°; m∠C = 90°

D)

BC = 9; m∠A = 36.9°; m∠B = 53.1°; m∠C = 90°

D)

BC = 9; m∠A = 36.9°; m∠B = 53.1°; m∠C = 90°

Step-by-step explanation:

15²-12² = 9²

BC = 9

sin B = 12/15 = 0.8

∠B = 53.1°

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.