Answer:
c. 80
Step-by-step explanation:
cos x = sin(x-70)
cos x = cos [90-(x-70)]
cos x = cos (90-x +70)
cos x = cos 160 -x
x= 160-x
2x = 160
x =80
Answer:49
Step-by-step explanation:
A=ab/2
98=ab/2
98/2=ab
49=ab
V/a = 3/5
a = 20
v = ...
3/5 = v/20
5v = 20*3
5v = 60
v = 60/5
v = 12 oz
Answer:
60
Step-by-step explanation:
45/9=5 an 12x5=60
jus trust
Answer:
x-5<21
Step-by-step explanation: