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uranmaximum [27]
4 years ago
6

Can someone answer this question and make sure they show working out. Will reward brainliest to the best answer.

Mathematics
1 answer:
wolverine [178]4 years ago
3 0

Answer:

8a²+8a+12b = 8a²+8a+12b

Step-by-step explanation:

first, expand the brackets

4a + 4a + 12a² + 8b + 4b - 4a²

then, collect like terms

8a + 8a² + 12b

then, rearrange

8a² + 8a + 12b

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Read 2 more answers
The Taylor family went on vacation. They traveled 412 miles on Monday. At the end of the day Tuesday, the average speed of the c
mixer [17]

Answer:

d = 56x + 412

Step-by-step explanation:

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7 0
3 years ago
Solve the system of equations. If the system does not have one unique solution, determine the number of solutions to the system.
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See photo. Hope it helps

3 0
3 years ago
Please help :) :) :)
Hatshy [7]

<span>A motorboat travels 222 km in 6 hours going upstream.
Rate = distance/time = 222/6 = 37 km/hr
----------------------
It travels 390 km going downstream in the same amount of time.
Rate = distance/time = 390/6 = 65 km/hr
---------
What is the rate of the boat in still water and what is the rate of the current?
Equations:
Upstream: b-c = 37 km/hr
Downstrm: b+c = 65 km/hr</span>

<span>Add and solve for "b":
(2)b = 102 km/hr
b = 51 km/hr (speed of the boat in still water)
-----
Solve for "c":
b+c = 65
51 + c = 65
c = 14 km/hr (speed of the current)</span>


7 0
3 years ago
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