We're given the hypotenuse and one side and we're looking for the missing side so use pythagorean.
20² - 16² = 144²
Square root of 144 = 12 feet
2cosx=2sin2x. Sin2x is an identity for 2sinxcos. So 2[2sinxcosx] gives you 4sinxcosx. 2cosx=4sinxcosx. Divide 2cosx on both sides and gives you 2sinx=0 and divide again, sinx=0. Sinx is 0 at 0 and 360 degrees, or pi and 2pi. So thats what x would be. 0,360,pi,2pi.
Answer:
(4x-3)(x+1)
Step-by-step explanation:
Answer:
178 pages
Step-by-step explanation:
convert feet to inches
9 x 12 = 108
11 x 12 = 132
108 x 132 = 14256
8 x 10 = 80
14256/80 = 178 with a little left over
The circumference of a circle -
The radius is
10 in.
