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musickatia [10]
3 years ago
10

Hello sam hhehehe .dk ;

Mathematics
1 answer:
pickupchik [31]3 years ago
6 0

Answer:

hello

Step-by-step explanation:

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What is 4(a5+7)+6(b7-5)
Andrej [43]
4a5+28+6b7-30
4a5+6b7-2<—- this is a to the power of 5 , b to the power of 7
(Is that 5a or a to the power of 5 )
20a+28+42b-30
20a+42b-2<—— this is 5a , 7b
4 0
3 years ago
Please explain me HOW to do it:
just olya [345]

Answer:

Answer: The average speed is 54 miles per hour.

6 0
2 years ago
Read 2 more answers
The angles in a triangle are represented by 5x, 8x, and 2x+9. What is the value of x?
Ahat [919]

Answer:

x = 11.4

Step-by-step explanation:

The sum of the angles of any triangle must add up to 180°.  Since we have the expressions for each angle:  5x, 8x, and (2x +9), we can solve for the variable of 'x' by adding the expressions together and setting them equal to 180:

5x + 8x + (2x +9) = 180

Combine like terms:  15x + 9 = 180

Use inverse operations: 15x + 9 - 9 = 180 - 9

                                                     15x = 171  or x = 11.4

Check:  5(11.4) + 8(11.4) + 2(11.4) + 9 = 57 + 91.2 + 22.8 + 9 = 180

8 0
3 years ago
Choose like terms:<br><br> 3x, y, 2x
Tresset [83]
3x and 2x are alike terms, as they have the same variable
4 0
3 years ago
What is the answer for Ab•2b
7nadin3 [17]

Answer:

2Ab^2

Step-by-step explanation:

I think its right

4 0
2 years ago
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