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grigory [225]
3 years ago
15

Pls help will mark as brainliest

Mathematics
2 answers:
dezoksy [38]3 years ago
6 0

Answer:

A

Step-by-step explanation:

garik1379 [7]3 years ago
3 0

Answer:

6x + 12x + 90 = 180

Step-by-step explanation:

Well 6x plus 12x must equal 90 degrees. 6x plus 12x plus 90 has to equal 180.

Therefore, 6x + 12x + 90 = 180

Because then, if you subtract 90 from both sides, you have that 6x + 12x = 90.

You might be interested in
7.03) An equation is shown below: 5(2x - 8) + 15 = -15 Write the steps you will use to solve the equation and explain each step.
laila [671]

So firstly, I would foil 5(2x - 8). 10x-40+15=-15


Next, I would combine like terms: 10x-25=-15


Next, I would add 25 on each side: 10x=10


Finally, I would divide 10 on each side, and my answer would be x = 1.

4 0
3 years ago
7. Write the equation -3x +2y = 7 in slope-intercept form.
Vlad [161]

Answer:

y = 3/2x + 7/2

Step-by-step explanation:

Slope-intercept form is when y is the subject. So we make y the subject:

Add 3x to both sides :

2y = 3x + 7

Now we divide both sides by 2 :

y = 3/2x + 7/2

This is our final answer.

Hope this helped and brainliest please

8 0
2 years ago
Read 2 more answers
Simplify the product. 2n(n2 + 3n + 4)
Monica [59]

Answer:

2 n 3 + 6 n 2 + 8 n

Step-by-step explanation:

2n(n2 + 3n + 4)

<u><em>Simplify :</em></u>

= 2 n 3 + 6 n 2 + 8 n

7 0
4 years ago
It’s about right triangles but it’s confusing
Lynna [10]

Answer:

A

Step-by-step explanation:

Use Pythagorean Theorem, which is for side lengths of right triangles.

a^2 + b^2 = c^2  (c is the hypotenuse)

Common combination is 3-4-5. Just by looking at the answers, I can see A is 3-4-5 except everything is multiplied by 2.

B is wrong. It would be 5-12-13 if it were a RT.

C is wrong. 3-4-5

D is wrong. 4 + 25 = 49 is not an equation.

3 0
4 years ago
Read 2 more answers
2(3-1)^2 / 1+1 x 3+3
zzz [600]
2(3-1) ² / 1+1 x 3+3
Use PEMDAS
2(2) ²/1+1 x 3+3
4 ² / 2x6
16/12
1.333
6 0
3 years ago
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