Answer:
16380 mL or 16.380 L
Step-by-step explanation:
1 hot tub requires 105 mL of Acid
156 hot tubs requires 105 * 156 mL of acid = 16380 mL of acid are needed.
16380 / 1000 mL/L = 16.380 Liters.
Answer:
= x^4 -x^3 -4x^2 -3
Step-by-step explanation:
f(x) = x^4 -x^2 +9
g(x) = x^3 +3x^2 +12
We want to find f-g
(f-g) (x) = x^4 -x^2 +9 - (x^3 +3x^2 +12)
Distribute the minus sign
(f-g) (x) = x^4 -x^2 +9 - x^3 -3x^2 -12
= x^4 -x^3 -4x^2 -3
This is a perfect square parabola
f(x) = (2x + 5)^2
the graph will be a parabola opening upwards and will touch the x-axis at x = -2.5
30+x=42 I think because it's has to equal 42 and he already has 30