Step-by-step explanation:
![5x^2(3x+2)](https://tex.z-dn.net/?f=5x%5E2%283x%2B2%29)
Distribute into 5x² into (3x +2).
![15x^3+10x^2](https://tex.z-dn.net/?f=15x%5E3%2B10x%5E2)
The simplified expression is <em>15x³ + 10x²</em>
Answer:
vertex: (2,-18)
Step-by-step explanation:
y = ax² + bx + c
(-1,0) : a - b + c = 0 ...(1)
(5,0) : 25a +5b +c = 0 ...(2)
(0,-10): 0a + 0b + c = -10 c=-10
(1) x5: 5a - 5b + 5c = 0 ...(3)
(2)+(3): 30a + 6c = 0 30a = -6c = 60 a = 2
(1): 2 - b -10 = 0 b = -8
Equation: y = 2x² - 8x -10 = 2 (x² -4x +4) - 18 = 2(x-2)² -18
equation: y = a(x-h)²+k (h,k): vertex
vertex: (2,-18)
Answer:
1300
Step-by-step explanation:
add 60x2+70+45x3
get 325
multaply times 4 because he gets this stuff then goes back and gets it 3 more times
get 1300
Answer:
104.7 in^3
Step-by-step explanation:
Step one:
given data
The ball has a radius of 5 inches and
the cylinder has a height of 8 inches
Step two:
The volume of the cylinder
![v= \pi r^2 h](https://tex.z-dn.net/?f=v%3D%20%5Cpi%20r%5E2%20h)
substitute our data
![v= 3.142*5^2*8\\\\v=628.4in^3](https://tex.z-dn.net/?f=v%3D%203.142%2A5%5E2%2A8%5C%5C%5C%5Cv%3D628.4in%5E3)
The volume of the ball
![v=4/3 \pi r^3](https://tex.z-dn.net/?f=v%3D4%2F3%20%5Cpi%20r%5E3)
substitute our data
![v= 4/3 *3.142*5^3\\\\v= 523.7 in^3](https://tex.z-dn.net/?f=v%3D%204%2F3%20%2A3.142%2A5%5E3%5C%5C%5C%5Cv%3D%20523.7%20in%5E3)
The space will have a volume of
=628.4-523.7
=104.7 in^3
Answer:
Plot B
Step-by-step explanation:
Plot B has a negative slope.