Dados os coeficientes a, b e c escreva as equações do 2o grau corretamente: a) a= 2 b= -2 c= 3
b) a= 12 b=15 c= 0
c) a= 0 b= 1 c= 0
d) a= 3 b= -4 c= -9
e) a= 8 b= -8 c= 13
f) a= 11 b= 55 c= -13
g) a= 16 b= 17 c= -2
h) a= 3 b= 0 c= 0

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere