minstcordell4115
05.07.2019 •
Mathematics
If x= 8, can the < 's be complementary
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Ответ:
6x + 10 + 2x + 16 = 90...when x = 8
6(8) + 10 + 2(8) + 16 = 90
48 + 10 + 16 + 16 = 90
58 + 32 = 90
90 = 90...correctso yes, the angles are complementary
Ответ:
answer: first option 125.6 feet
solution:
distance: d=1/4 lc (because is a quarter of a circle)
length of the circumference: lc=2 pi r
pi: constant=3.14
radius of the circle: r=80 feet
replacing pi and r in the formula of lc:
lc=2 pi r
lc=2 (3.14) (80 feet)
lc=502.4 feet
replacing lc in the formula of d:
d=1/4 lc
d=1/4 (502.4 feet)
d=502.4/4 feet
d=125.6 feet