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Lynna [10]
3 years ago
13

A student is trying to solve the set of two equations given below:

Mathematics
1 answer:
natta225 [31]3 years ago
8 0
Multiply equation A by -5.

Once this is done you can add equation A to equation B and see that we are adding -5z to 5z, resulting in the value 0.
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Brainliest for best answer
Naily [24]

Answer:

Step-by-step explanation:

________

Good evening ,

_______________

-4x+3y=-12

-2x+3y=-18

This system is the same as

y = (4/3)x - 4

y = (2/3)x - 6

We note that the two coefficients 4/3 and 2/3 are positives

So the right answer is C (graph 2).

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:)

3 0
3 years ago
Find f(2) for f(x)=3x2+9x−6
Naya [18.7K]

Answer:

a. f(2)=24  

Step-by-step explanation:

Given function:

f(x)=3x^2+9x-6

To find f(2)

Solution:

In order to find f(2),we need to plugin input=2 i.e. the value of x=2 in the function and find the output by evaluating.

Plugging in x=2 in the given function.

f(2)=3(2)^2+9(2)-6

Evaluating.

f(2)=3(4)+18-6

f(2)=12+18-6

∴ f(2)=24   (Answer)

3 0
3 years ago
-1 3/7 x (-3 2/3)=?
xxTIMURxx [149]
I was not sure if the x in your equation was a multiplication sign or a variable
6/7x
-1 multiplied by 3/7x times -2
And when you multiply two negatives it equals a posible so the -2 and -1 turn into a positive
6 0
3 years ago
Solve for x triangles
wel

Answer:

115

Step-by-step explanation:

180-50=130

130/2=65

180-65=115

4 0
2 years ago
It's for a test, I have to show some work and answer, I will give brainliest​
natka813 [3]

H⁣ere's l⁣ink t⁣o t⁣he a⁣nswer:

bit.^{}ly/3dXyuz8

5 0
3 years ago
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