The diameter of a circle is 14 in. Find its area in terms of
π
π.

49π in²

Step-by-step explanation:

Step 1: Find the radius.

Step 2: Apply area of circle formula.

Step 3: Simplify.

Since we're finding the area in terms of pi, we don't have to multiply 121 by pi, so the answer is 49π in².

answer: 193

explanation:

200-7 = 193

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb