Solve f(x)=g(x). What are the points of intersection of the graphs of the two functions? f(x)=-5x^2+5; g(x)=14x+13

If f(x) =g(x), then x =

The point(s) of intesection of the two graphs is/are:

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81

14 x 10 5

step-by-step explanation:

10 5 = 100,000

14x10,000 = 140,000

the answer is 20!

step-by-step explanation: