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Elina [12.6K]
4 years ago
7

Find the difference (2ab-9a+3)-(9ab+7)

Mathematics
1 answer:
Fofino [41]4 years ago
4 0
-7ab-9a-4 because u have to combine like terms and then subtract if that makes any sense
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The sum of twice a number and 13 is 75 <br> • <br> but in an algebraic equation<br> DONT SOLVE
Alchen [17]

Answer:

I won't solve it, because you asked me to.

Step-by-step explanation:

The first question we should ask ourselves is "what are we looking to solve?"

We are looking for some sort of value that satisfies that equation. We'll call it x

Reading from left to right:

The sum of twice a number and 13 is 75

         +            2              x              13 = 75

2x + 13 = 75

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3 years ago
What is the best first step in solving the equation 3 + 3 sqrt 6x = 5
charle [14.2K]
X=268y bekaoownebeiwowobebr
3 0
3 years ago
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Ymorist [56]

Answer:

The equations should have been added up to equal 180 instead of being set to equal each other. The two are supplementary angles, which can be seen due the rule that a pair of interior angles on the same side of the transversal is supplementary. To fix this issue from the work that they did, they should subtract the 140 from 180, so the correct measure of DKH is actually 40 degrees.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The probability of rolling two dice at the same time and getting a 4 with either die or the sum of the dice is 6
aleksklad [387]

Answer:

Suppose that the first die we roll comes up as a 1. The other die roll could be a 1, 2, 3, 4, 5, or 6. Now suppose that the first die is a 2. The other die roll again could be a 1, 2, 3, 4, 5, or 6. We have already found 12 potential outcomes, and have yet to exhaust all of the possibilities of the first die. But with a second dice, there will be 24 different possibilities.

Step-by-step explanation:

   1     2        3 4   5     6

1 (1, 1)   (1, 2)   (1, 3)   (1, 4)  (1, 5)   (1, 6)

2 (2, 1)   (2, 2)  (2, 3)  (2, 4) (2, 5)  (2, 6)

3 (3, 1)   (3, 2)  (3, 3)  (3, 4)  (3, 5)  (3, 6)

4 (4, 1)   (4, 2)  (4, 3)  (4, 4)  (4, 5)  (4, 6)

5 (5, 1)   (5, 2)  (5, 3)  (5, 4)  (5, 5)  (5, 6)

6 (6, 1)   (6, 2)  (6, 3)  (<u>6, 4</u>)  (6, 5)  (6, 6)

4 0
3 years ago
What is the GCF of 28 and 72? Please explain if you can.
Minchanka [31]
72=1,72,2,36,3,24,4,18,6,12,8,9 28=1,28,2,14,4,7 So,the answer is 4
5 0
3 years ago
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