F(x) = x² - 81
Finding f⁻¹(x) the inverse function
Let y = f(x) and solve for x.
y = x² - 81
y + 81 = x²
x² = y + 81
x = √(y + 81)
Recall f(x) = y, that means x = f⁻¹(y)
x = √(y + 81)
f⁻¹(y) = √(y + 81)
Therefore f⁻¹(x) = √(x + 81)
<span>Mother bought a washing machine for $490 and a dryer for$ 520 if she made 10 equal payments how much would each payment be... the first one would be 49 and the 2 is 52</span>
Let x represent the width. Since the length is 3 more than 4 times the width, that would be equal to 3+4x. The perimeter is the sum of all sides, so that would be x+x+3+4x+3+4=86. Combine like terms, which would result in 10x+6=86. Subtract 6 from both sides giving you 10x=80. Divide by 10 giving you x=8. That means that the width is 8. The length is 3+4x. Substitute 8 for x giving you 3+4(8). Multiply, giving you 3+32, then add, which would give you 35. 35 is the length.
Answer: -11.47 + 3.7s
-3.7(3.1-s)
-3.7*3.1-3.7*(s)
-11.47 + 3.7s
It depends on how many boxes max puts in. If max puts 2 boxes in the larger one then the box would be approximately 350 cubic inches
