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Eva8 [605]
4 years ago
11

Which expression is equivalent to 9a + 12? (1 point)

Mathematics
2 answers:
Allushta [10]4 years ago
5 0

First 1!

3(3a + 4)

3(3a + (3)4)

= 9a + 12

harkovskaia [24]4 years ago
3 0
The first one is.

3 x 3A is oA
3 x 4 is +12
9a +12
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BEST ANSWER EARNS BRAINLIEST!
Lady bird [3.3K]
Please mark brainliest 3 more to rankup.

so is how I would solve this is one corner at a time. Since these are all triangles you will solve the area of a corner and divide it by 2. Then you will have the area of a corner.

(7.5 x 5) /2= 18.75
(7.5 x 14) /2=52.5
Mirror this on the other side because they are the same on the other side and then add them all together

(18.75 x 2) + (52.5 x 2) = 142.5

Answer is A
142.5
3 0
3 years ago
Highest Common Factor of 27 and 36.
QveST [7]

Answer:

9

Step-by-step explanation:

listing the factors

27 : 1, 3, 9, 27

36 : 1, 2, 3, 4, 9, 12, 18, 36

the common factors are 1, 3, 9

the highest common factor is 9

8 0
1 year ago
Read 2 more answers
64 percent rounds to the nearest
Serggg [28]
Tenth have to make answer longer for this app sorry
5 0
3 years ago
Rewrite each expression as a polynomial in standard form: (2x^2 − x^3 − 9x +1) − (x^3 +7x − 3x^2 +1)
Vitek1552 [10]

Answer:

Polynomial in standard form will be -2x^3+5x^2-16x

Step-by-step explanation:

We have given polynomial 2x^2-x^3-9x+1-(x^3+7x-3x^2+1)

We have to write this polynomial in standard form

For writing in standard form we have to first subtract the polynomial and then rearrange the order

So 2x^2-x^3-9x+1-(x^3+7x-3x^2+1)=2x^2-x^3-9x+1-x^3-7x+3x^2-1=-2x^3+5x^2-16x

So polynomial in standard form will be -2x^3+5x^2-16x

8 0
3 years ago
A bag contains 112 red marbles and 100 green marbles. What percent of the marbles are red?
ahrayia [7]

Answer:

Step-by-step explanation:

Total marbles are 212

112/212 = 28/53

Approx. 52. 83%

5 0
3 years ago
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