Formula for the area of a circle:
A = πr² (A = Area π(pi) r = radius)
You know:
r = 14 inches So substitute/plug it into the equation
[Radius is
(half) of the diameter. The diameter is 28, so half of 28 = 14]
A = πr² Plug in 14 into "r" since r = 14
A = π(14)² Find 14² --> 14 x 14 = 196
A = 196π in² Your answer is the 4th option
To solve the questions we proceed as follows:
(2x+y)^5
=(2x+y)^2(2x+y)^2(2x+y)
=(4x^2+4xy+y^2)(4x^2+4xy+y^2)(2x+y)
=32x^5+80x^4y+80x^3y^2+40x^2y^3+10xy^4+y^5
the coefficient of xy^4 is 10
the answer is 10
(5/8) × 48 = (8/15) × n
Multiply by the inverse of the coefficient of n. That inverse is 15/8.
n = (15/8)×(5/8)×48 = (75/64)×48 = 225/4 = 56 1/4
5/8 of 48 is equal to 8/15 of 56 1/4
Multiply 2 and 3 and 6 and 9 and find the gcf and then do 2 plus 1