1. If CE = 9x – 22 and FD = 4x + 3, find CE. 2. If m∠FCD = (8x – 1)° and m∠EDC = (3x + 39)°, find m∠DEF.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

what? that isnt a question

step-by-step explanation:

answer: im sorry i dont get it

step-by-step explanation:

the opening of this porabola is facing up

step-by-step explanation: