Use the Law of Sines to find BC. Round your answer to the nearest tenths.
B
20
35°
50°
C

Step-by-step explanation:

law of sines is :   Sin(A) / a = Sin(C) / c

where A=35

a = BC

C=50

c=20

Sin(35) / a = Sin(50) /  20

0.5735764 / a = 0.76604444 / 20

0.5735764 / a = 0.03830222

0.5735764 / 0.03830222 = a

14.975 = a

BC = 15.0

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

21

step-by-step explanation: