Question

22=a(0-10)²+72

Please solve ‘a’ for me ! Asap

Answer 1

a = -
`(1)/(2)`

Explanation:

22 = a(0 - 10)² + 72

simplify:

22 = a(-10)² + 72

22 = a × 100 + 72

22 = 100a + 72

subtract 72 from both sides:

100a = -50

divide both sides by 100:

a = -
`(1)/(2)`

Answer 2

a=-0.5

Explanation:

22=a(0-10)²+72=a(-10)^2+72=a(100)+72

collect like terms

100 a=22-72=-50

dividing by 100

a=-50/100 =-1/2 = -0.5