Answer:
6x²
Step-by-step explanation:
Answer:
what chart
Step-by-step explanation:
Answer:
![1590.6cm {}^{3}](https://tex.z-dn.net/?f=1590.6cm%20%7B%7D%5E%7B3%7D%20)
Step-by-step explanation:
![volume \: of \: a \: cone \: v = \frac{1}{3}\pi \: r {}^{2} h \\ radius = \frac{diameter}{2} = \frac{15}{2} = 7.5 \\ v = \frac{1}{3} \times 3.42 \times (7.5) {}^{2} \times 27 \\ v = \frac{3.142 \times 7.5 \times 7.5 \times 27}{3} \\ v = \frac{4771.9125}{3} = 1590.6375 \\ v = 1590.6cm {}^{3} (approximatly) \\ please \: rate \: and \: mark \: brainliest](https://tex.z-dn.net/?f=volume%20%5C%3A%20of%20%5C%3A%20a%20%5C%3A%20cone%20%5C%3A%20v%20%3D%20%20%5Cfrac%7B1%7D%7B3%7D%5Cpi%20%5C%3A%20r%20%7B%7D%5E%7B2%7D%20h%20%5C%5C%20radius%20%3D%20%20%5Cfrac%7Bdiameter%7D%7B2%7D%20%20%3D%20%20%5Cfrac%7B15%7D%7B2%7D%20%20%3D%207.5%20%5C%5C%20v%20%3D%20%20%5Cfrac%7B1%7D%7B3%7D%20%20%5Ctimes%203.42%20%5Ctimes%20%287.5%29%20%7B%7D%5E%7B2%7D%20%5Ctimes%2027%20%5C%5C%20v%20%3D%20%20%5Cfrac%7B3.142%20%5Ctimes%207.5%20%5Ctimes%207.5%20%5Ctimes%2027%7D%7B3%7D%20%20%20%20%5C%5C%20v%20%3D%20%20%5Cfrac%7B4771.9125%7D%7B3%7D%20%20%3D%201590.6375%20%5C%5C%20v%20%3D%201590.6cm%20%7B%7D%5E%7B3%7D%20%28approximatly%29%20%5C%5C%20please%20%5C%3A%20rate%20%5C%3A%20and%20%5C%3A%20mark%20%5C%3A%20brainliest)
Answer:
X=(-1.5, 7.5)
Step-by-step explanation:
Simplifying
4x2 + -24x + -45 = 0
Reorder the terms:
-45 + -24x + 4x2 = 0
Solving
-45 + -24x + 4x2 = 0
Solving for variable 'x'.
Factor a trinomial.
(-3 + -2x)(15 + -2x) = 0
Set the factor '(-3 + -2x)' equal to zero and attempt to solve:
Simplifying
-3 + -2x = 0
Solving
-3 + -2x = 0
Move all terms containing x to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + -2x = 0 + 3
Combine like terms: -3 + 3 = 0
0 + -2x = 0 + 3
-2x = 0 + 3
Combine like terms: 0 + 3 = 3
-2x = 3
Divide each side by '-2'.
x = -1.5
Simplifying
x = -1.5
Set the factor '(15 + -2x)' equal to zero and attempt to solve:
Simplifying
15 + -2x = 0
Solving
15 + -2x = 0
Move all terms containing x to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + -2x = 0 + -15
Combine like terms: 15 + -15 = 0
0 + -2x = 0 + -15
-2x = 0 + -15
Combine like terms: 0 + -15 = -15
-2x = -15
Divide each side by '-2'.
x = 7.5
Simplifying
x = 7.5
Solution
x = {-1.5, 7.5}
Insert x = -1 and y = 4 into the first inequality:-
4 <= -(-1) + 4 = 5
so this fits
Its A