Answer:
Use the quadratic formula
=
−
±
2
4
√
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
5
1
+
8
0
5x^{2}-41x+8=0
5x2−41x+8=0
a={\color{#c92786}{5}}
a=5
b={\color{#e8710a}{-41}}
b=−41
c={\color{#129eaf}{8}}
c=8
(
)
⋅
Simplify
3
Separate the equations
Solve
Solution
Answer: 769.3ft³
Step-by-step explanation:
V = r²h
V = (3.14)(7)²(5)
V = 769.3ft³
-1/3
This equation is in y-intersept form; y=mx+b, where m is the slope
-30
-20-8=-28
-28-12
=-30