A band is playing at a local restaurant for a total of 8 Fridays and will be paid after their last performance. The band advertises their 8 appearances in the local newspaper for a total cost
of $400. If the band makes $500 for each appearance, which numeric expression correctly
shows the amount of money each of the four members will earn?

A.(8 x 500 - 400) divided by 4
B.8 x 500- 400 divided by 4

the probability is 0

answer: y=0 if that is what u r looking for

86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2

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