Answer:
x = -2
Step-by-step explanation:
1. Evaluate the function when x=-2.
This means to plug in -2 anywhere you see x in the equation.
3(-2)+4
2. Simplify and solve.
-6+4
x = -2
<em />Inez = x
Jane = 2x
Tracy = 2x + 1
All together, the equation is : x+2x+(2x+1)=36
First, combine like terms. 5x + 1 = 36
Subtract 1 on both sides. 5x = 35
Divide each side by 5. x = 7
Now, plug 7 into each girl's expression.
Inez: 7
Jane: 2(7) = 14
Tracy: 2(7) + 1 = 15
Hope this helps :)
I did this a long time ago so I can’t really remember but the one that is colored is 19 and then you just have to count the whole cube which is 100 so it might be 19:100?
Answer:
Never tried.
Step-by-step explanation:
But I'm glad you like them!
Answer:
1. tangent slope is horizontal at (-5,197) and (1,-19)
2. the tangent line has slope -48 at points (-1, 37) and (-3, 141)
Step-by-step explanation:
1. f(x) = 2x³+12x²-30x-3
f'(x) = 6x²+24x-30
the tangent is horizontal when f'(x) = 0
0 = 6x²+24x-30
0 = x²+4x-5
0 = (x+5)(x-1)
x= -5, 1
f(-5) = -250+300+150-3 = 197
f(1) = -19
tangent slope is horizontal at (-5,197) and (1,-19)
2. when f'(x) = -48
6x²+24x-30 = -48
6x²+24x+18 = 0
x²+4x+3 = 0
(x+1)(x+3) = 0
x = -1, -3
f(-1) = 37
f(-3)=141
the tangent line has slope -48 at points (-1, 37) and (-3, 141)