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Dahasolnce [82]
2 years ago
5

What is -3(-4a-2)???

Mathematics
2 answers:
AleksAgata [21]2 years ago
3 0

Answer:

-3(-4a - 2) = 12a + 6

nordsb [41]2 years ago
3 0

Answer:

-3(-4a - 2) = 12a + 6

Step-by-step explanation:

-3(-4a - 2)

=> multiply -3 by everything in the parenthesis

-3 * -4a = 12a

-3 * -2 = 6

=> combine like terms

12a + 6

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In triangle ABC, m∠ABC = (4x – 12)° and
VashaNatasha [74]

The value of ∠ABC is 64 degree at x = 19 degree ,therefore Yin is not right about the value of x .

<h3>What is a Triangle ?</h3>

A triangle is a polygon with three sides , angles and vertices.

It is given that

m∠ABC = (4x – 12)°

m∠ACB = (2x + 26)°

Let m∠ACB = y degree

It is asked that if x =19 degree , is the triangle equilateral

m∠ABC = (4x – 12)° = 4 *19 -12 = 64 degree

As in an equilateral triangle , the angles are all equal and equal to 60 degree.

If the value of ∠ABC is 64 degree at x = 19 degree ,therefore Yin is not right about the value of x .

To know more about Triangle

brainly.com/question/2773823

#SPJ1

8 0
1 year ago
In triangle ABC, the size of angle B is 5 times the size of angle A, and the size of angle C is 7 less than 4 times the size of
kipiarov [429]
It sounds like everything is being described in reference to angle A, so a good starting point is to pick a variable to represent the measure of angle A. I'm going to use "a" for that.

Next, I'm going to take the verbal descriptions in the problem and "translate" them into "math language". They say angle B is 5 times angle A, so that means the measure of angle B is actually 5a. The size of angle C is 5 degrees less than 4 times the size of A, so that translates to 4a-5.

We now know the following:

Angle A: a
Angle B: 5a
Angle C: 4a-5

Now, to find the value of a, we need to remember that all the angles in a triangle add up to 180 degrees.

So we have: a+5a+4a-5 = 180

We can solve that equation by combining like terms to get: 10a-5=180

We can add 5 to both sides: 10a =185

And divide by 10: a = 18.5

That tells us the measure of angle A! (It's 18.5 degrees). Now we can go back and find B by multiplying A by 5. We get 92.5 degrees for that.

Finally, we can find C by taking 4*18.5-5. We get 69 degrees for that.

One last thing-- let's check that they really do add up to 180! 69+92.5+18.5 = 180. Yep!

Hope that helps you!!
5 0
3 years ago
What is the solution set for 3x+2=14 given the replacement set 1,2,3,4
Lynna [10]
You could replace x for 4
8 0
3 years ago
P L E A S E H E L P A S A P !!!
natulia [17]

Answer:

The third one for the first picture and the second one for the second picture

Step-by-step explanation:

8 0
3 years ago
Zach only wants to plant a group of ten flowers in each box. Is there any way that zach could plant all 53 flowers using only bo
sergey [27]

Answer:

he is will have to get 5

Step-by-step explanation:

53/10=5.3

you cant have ".3" box so you have to round it off

5 0
3 years ago
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