-16 & -5 multiply to 80 and add up to -21
Answer:
y intercept= -5
Step-by-step explanation:
Yo use the formula y-y1 = m(x-x1)
then you put in the points given to find the y intercept
y -3 =-4 (x - - 2 )
y-3 = -4x -8
+3 +3
y= -4x -5
This means that when the slope is -4 then the y intercept is -5
Answer:
c=2
Step-by-step explanation:
hope it helps :)
Simplifying
3 + -1(2c + -8) = 7
Reorder the terms:
3 + -1(-8 + 2c) = 7
3 + (-8 * -1 + 2c * -1) = 7
3 + (8 + -2c) = 7
Combine like terms: 3 + 8 = 11
11 + -2c = 7
Solving
11 + -2c = 7
Solving for variable 'c'.
Move all terms containing c to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + -2c = 7 + -11
Combine like terms: 11 + -11 = 0
0 + -2c = 7 + -11
-2c = 7 + -11
Combine like terms: 7 + -11 = -4
-2c = -4
Divide each side by '-2'.
c = 2
Simplifying
c = 2
Answer:
V = 75π
Step-by-step explanation:
The volume of a cone is πr^2 * h / 3
r = 5
h = 12
25π * 3 = 75π
Answer:
C.) 0
Step-by-step explanation:
ax^2+bx+c
discriminant
b^2 -4ac
4^2-4*4*1
16-16
0