Answer:
n(n-1) =156
n^2-n=156
n^2-n-156=0
(n-13) (n+12) =0
so n=13 because it's an ordinary number and can't be negative
Perimeter of sector = 2 radius + (radius × central angle)
Step-by-step explanation:
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Answer:
I think its B
Step-by-step explanation:
The product of 10 and a number (10n) is 3 less than the number (n - 3)
Answer:
A (5 -1/2x )^ 1/5
Step-by-step explanation:
y=-2x^5 + 10
Exchange x and y
x=-2y^5 + 10
Solve for y
Subtract 10 from each side
x-10 = -2y^5
Divide by -2
x/-2 -10/-2 = -2/-2 y^5
-1/2x +5 =y^5
Take the 5th root on each side
(-1/2x +5)^ 1/5 = (y^5)^1/5
(-1/2x +5)^ 1/5 = y
