To determine premiums, life insurance companies must compute the probable date of death. On the basis of a great deal of research Mr. Duncan, age 36, is expected to live another 43.21 years. Does this determination mean that Mr. Duncan wll live until he is 79.21 years old? If not, what does it mean

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

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