Answer:
knowing that sin(60)=0.866, what is cos(30)
Step-by-step explanation:
Cos 30 = 8.66
4/x = x/9
36 = x²
6 = x
The geometric mean between 4 and 9 is 6
Answer: False
Answer:
Step-by-step explanation:
Three equal sides, so lets find one by solving for x
6x + 16 = 9x-11
-3x = -27
x = 9
6(9) + 16 = 70
9(9) - 11 = 70
70(3) = 210 cm
Answer:
x=1/3
Step-by-step explanation:
Answer:
x=-2
Step-by-step explanation:
add 5x , then subtract 45, then divide by 15