3 years ago

Solve the system of equations. 10x + y= − 20 y = 2 x^2 − 4x − 16

1 answer:

5 0

A graphing calculator shows two solutions:
(x, y) = (-2, 0) or (-1, -10)

You might be interested in

Gelneren [198K]

The answer is A. -137.8

7 0

3 years ago

Allushta [10]

Answer:

D. 7n = 28

Step-by-step explanation:

Let's substitute 4 for n in each equation to check if it the resulting equation is correct:

$6+n=24\\ 6+4=24\\ 10\neq 24\rightarrow \text{Incorrect!}$

$5n=54\\5(4)=54\\20\neq54\rightarrow\text{Incorrect!}$

$12-n=16\\12-4=16\\8\neq16\rightarrow\text{Incorrect!}$

$7n=28\\7(4)=28\\28=28\rightarrow\text{Correct!}$

Therefore the answer is D

4 0

2 years ago

photoshop1234 [79]

1500 hopefully that helps

8 0

3 years ago

Akimi4 [234]

3w-13w=-20

Combine like terms

-10w=-20

divide both sides by -10

w=2

5 0

3 years ago

kkurt [141]

Divide each side of the equation by 0.3 .

6 0

3 years ago