What is the converse of the following statement?

plastic is a man- made product

a. if the object is man- made, it is plastic.
b. if the object is not man- made, it is not plastic.
c. if the object is not plastic, it is not man- made.
d. if the object is plastic, it is man- made.

The answer is D. It is an "if-then" statement . Hope this helps :))

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

70

step-by-step explanation: