Use the diagonals to determine whether a parallelogram with vertices j(−7,7), k(−2, 2), l(−3,−5), and m(−8,0) is a rectangle, rhombus, or square. give all the names that apply.

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

you divide them and then you get the answer i took this class this year

step-by-step explanation:

yeah i know the problem you need. i am taking it right now. the answer is step 3

~mickey