simplify.

(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

a) 7x^3 + 13x^2 + 8x + 9

b) 7x^3 + 30x^2 + 12x + 9

c) 13x^3 + 8x + 16x^3

d) 13x^4 + 7x^3 + 8x^2 + 9

The equation of a circle is (x - 3)2 + (y - 7)2 = 25. determine the length of the radius. 4 25 12.5 5 write the standard equation of the circle with center (2, 3) and a diameter of 12. (x - 2)2 + (y - 3)2 = 36 (x + 2)2 + (y + 3)2 = 12 (x - 2)2 + (y - 3)2 = 6 (x - 3)2 + (y - 2)2 = 36 the equation of a circle is (x + 3)2 + (y + 7)2 = 25. where is (3, 4) located in relation to the circle? on the circle in the interior of the circle in the exterior of the circle at the center of the circle

Solve for x and select the correct answer

What is the total surface area of the square pyramid