Question

Please help! I keep on getting the wrong answer!

Answer 1

A. 18.84

B. 28.26

C. 364.24

D. 120

E. 14

F. 21

G. 96

CODE: 1977.98

Explanation:

a. C = 2πr

C = 2π(3)

C = 6π

C = 6(3.14)

C = 18.84

b. A = πr²

A = π(3)²

A = 9π

A = 9(3.14)

A = 28.26

c. C = 2π(58)

C = 116π

C = 116(3.14)

C = 364.24

d. 4x + 2x = 180

6x = 180

x = 30

4x = 4(30) = 120

e. 3x - 21 = x + 7

2x = 28

x = 14

f. angle JHK = 3x - 21 = 3(14) - 21 = 21

g. supplementary means 2 numbers add up to 180

180 - 84 = 96

CODE: E(C - D) - F(G - B) - A

14(364.24 - 120) - 21(96 - 28.26) - 18.84

= 14(244.24) - 21(67.74) - 18.84

= 3419.36 - 1422.54 - 18.84

= 1977.98