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kramer
2 years ago
15

Could someone please help I will give brainiest to best answer but please show steps?

Mathematics
2 answers:
sertanlavr [38]2 years ago
8 0

Answer:

3x+9=9x+15 =-6

Step-by-step explanation:

3x-15x-9x=15

-21x=15

15/-21

x=-6

pochemuha2 years ago
7 0
It would be 9x+15

g is right above h

If two lines are cut by a transversal and the consecutive exterior angles are supplementary, then the two lines are parallel. Keep in mind you do not need to check every one of these 12 supplementary angles. Just checking any one of them proves the two lines are parallel
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Witch value of x makes the equation x + 7 = 21 true ?
Shkiper50 [21]

Answer:

x=14

Step-by-step explanation:

x+7=21

x=14

5 0
3 years ago
Please help me with this
swat32

Answer:

The answer is 156.25π or about 490.625

Step-by-step explanation:

To find the area of a circle, you use the formula πr² (pi times radius times radius.) The radius is 12.5, so you plug it in to the equation. Once you plug the radius into the equation, you get π times 12.5 times 12.5. This simplifies to 156.25 times pi. If you want to use 3.14 as pi, the final answer is about 490.625. I hope this helps and that you have an fantastic day!!! Hope you stay safe!!!

6 0
2 years ago
Select the number property that will justify the step in the following expression.
Airida [17]
Two of the numbers were switched in a multiplication equation, so the answer would be commutative- multiplication. 
7 0
3 years ago
Read 2 more answers
How do you solve f(x)= 4x(2)-4x-3?
slavikrds [6]
If by 4x(2) you mean 4x to the power 2 or 4x^2...it can be solved in the following way
f(x)=4x^2-4x-3
=4x^2+2x-6x-3
=2x(2x+2)-3(2x+2)
=(2x-3)(2x+2)
Therefore x=3/2 or x=-2/2=(-1)
8 0
3 years ago
What is 9/10 divided by 3/4?
goldenfox [79]

Answer:

6/5

Step-by-step explanation:

hi! when dividing fractions, we use the KCF rule, which stands for keep,change,flip. we keep the first fraction the same, change the division symbol to multiplication, and flip the second fraction to its reciprocal. therefore, we now have:

9/10 * 4/3

now, we can multiply the numerators and denominators.

36/30

we can simplify this.

6/5

7 0
3 years ago
Read 2 more answers
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