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Lelu [443]
3 years ago
12

Help me, anybody last question i have.

Mathematics
1 answer:
svet-max [94.6K]3 years ago
5 0
Hi the answer is, The slope is -1
You might be interested in
1) Solve the following system of equations algebraically. Give your solution as two
Bad White [126]

For this case we have the following system of equations:

y = x ^ 2 + 7x + 12\\y = 2x + 8

Equating both equations we have:

x ^ 2 + 7x + 12 = 2x + 8\\x ^ 2 + 7x-2x + 12-8 = 0\\x ^ 2 + 5x + 4 = 0

We must find the solutions, for this we factor. We look for two numbers that, when multiplied, result in 4 and when added, result in 5. These numbers are 4 and 1:

4 + 1 = 5\\4 * 1 = 4

Then, the factorized equation is of the form:

(x + 4) (x + 1) = 0

Thus, the solutions are:

x_ {1} = - 4\\x_ {2} = - 1

We look for solutions for the variable "y":

y_ {1} = 2 (-4) + 8 = -8 + 8 = 0\\y_ {2} = 2 (-1) + 8 = -2 + 8 = 6

Thus, the system solutions are given by:(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)

ANswer:

(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)

8 0
3 years ago
What is the value of the expression when n=3 -2(5+n-8-3n)
Greeley [361]
-2n(5 + n - 8 - 3n)
-10n - 2n² + 16n + 6n²
4n² + 6n
7 0
3 years ago
Read 2 more answers
Please help me with this and explain so I can get it. Do only 3 and 9
ASHA 777 [7]
5a+b = 5(6)+3 =3
10-r+5 = 10-(9)+5 =6
6 0
4 years ago
Ami bought some gardening tools. She paid $15 for a rake, $18 for a garden hose, and $47 for a wheelbarrow. What percent of the
trapecia [35]
19 percent.


15/80 = <span>18.75, rounded is 19.</span>
8 0
4 years ago
Subtract: 2x2 - 4x - 3 from x2 - 5x - 8.
VladimirAG [237]
X^2 - 5x - 8 - <span>2x^2 + 4x + 3
= -x^2 - x - 5 

hope that helps</span>
7 0
3 years ago
Read 2 more answers
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