Step-by-step explanation:
sin²α − sin⁴α
Factor out sin²α.
sin²α (1 − sin²α)
Use Pythagorean theorem.
(1 − cos²α) cos²α
Distribute.
cos²α − cos⁴α
Assuming you mean how many times 42 goes into 166:
166 ÷ 42 = 3.9523809
Answer:
Step-by-step explanation:
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Answer: its no variable
Step-by-step explanation:
Answer:
radius of sphere = 9 ft
Explanation:
Volume of the sphere can be calculated using the following rule:
V = (4/3) * pi * (r)³
where:
V is the volume = 972 pi
r is the radius we want to find
Substitute with the givens in the equation to get the radius as follows:
972 pi = (4/3)*pi*(r)³
972 = (4/3) * (r)³
(r)³ = 972 * (3/4)
(r)³ = 729
r = ∛729
r = 9 ft
Hope this helps :)
