Answer:
20
Step-by-step explanation:
Plug in -4 for n:
(-4)^2 - (-4) = 16 + 4 = 20
Diameter \ 2 = radius
8/2 = 4
4^2 = 16
16*pi is about 50.27
Your area is 50.27m^2
Asteroids, planets, moons, and astronomy.
Answer:
n = m - 7 or n = -m - 7
Step-by-step explanation:
Solve for n:
m^2 - (n + 7)^2 = 0
The left hand side factors into a product with two terms:
(-7 + m - n) (7 + m + n) = 0
Split into two equations:
-7 + m - n = 0 or 7 + m + n = 0
Subtract m - 7 from both sides:
-n = 7 - m or 7 + m + n = 0
Multiply both sides by -1:
n = m - 7 or 7 + m + n = 0
Subtract m + 7 from both sides:
Answer: n = m - 7 or n = -m - 7
62/1 99.2/x
99.2/62 = x
The answer is 1.6 hours.