Weighted Averages The formula for a baseball player's slugging percentage is:
1S+ 2D+37+ 4HR
AB
Which set of Singles, Doubles, Triples, and Home Runs would have a slugging
percentage less than .430 if you have 400 At Bats? (answers are in order singles,
doubles, triples, and homeruns)
a) 80, 20, 10, 10
b) 20, 40, 4, 56
O c) 90, 10, 6, 14
d) 96, 6, 10,8

..

step-by-step explanation:

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

answer: math isn’t just mysterious because the majority of us find it so difficult to understand – it’s also the basis of the universe, giving us clues to physical phenomena like the motion of gases in the atmosphere and the way that physical particles interact with each other amid all the possible variables in three-dimensional space.