Answer:
x = −4, 2.5
Step-by-step explanation:
Let's write this problem algebraically
f(x) = x^2 - x - 12
g(x) = -2.5x - 2
We want to find the solutions to the equation f(x)=g(x) so we set them equal to each other
f(x)=g(x)
x^2 - x - 12 = -2.5x - 2
Adding 2.5x and 2 to both sides,
x^2 + 1.5x - 10 = 0
Factoring, we get
(x + 4) (x - 2.5) = 0
So,
x + 4 = 0 ⇒ x = -4
x - 2.5 = 0 ⇒ x = 2.5
Answer:
30+46=76
Step-by-step explanation:
so you want to draw out a model and write the two numbers and add them.
Answer:
Step-by-step explanation:
Take out 8m as a factor from the top side of the equation. You are left with
The mean is 242.83 and the median of it is 264.5
Let's factor x^2−22x+121
The middle number is -22 and the last number is 121. Factoring means we want something like
(x+_)(x+_)
Which numbers go in the blanks? We need two numbers that...
Add together to get -22
Multiply together to get 121
Can you think of the two numbers?
Try -11 and -11:
-11+-11 = -22
-11*-11 = 121
Fill in the blanks in
(x+_)(x+_)
with -11 and -11 to get...
(x-11)(x-11)
Answer: (x-11)(x-11)
Hope this helps!!!