A profit formula for a single tire can be modeled by the function P(t) = -18 + 850t - 725. Each set of tires can be modeled
by the function t(s) = 4s.
Which composite function can be used to determine the profit function in terms of the number of sets of tires?
P(t(s)= -28852 + 3,400s - 725
P(t(s)) = -28852 + 13,600s - 725
P[t(s)) = -7252 + 3,400s – 2,900
P(t(s)) = -72s2 + 13,600s - 2,900
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A. P(t(s)= -28852 + 3,400s - 725

this is correct for eng

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

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.