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photoshop1234 [79]
3 years ago
14

Simplify the expression: -2(2c-4)-9c - 12

Mathematics
1 answer:
Fantom [35]3 years ago
8 0

Answer:

-13c-4

Step-by-step explanation:

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2x^3 + 10x^2 − 4x^2y − 20xy
Sergio [31]

Answer:

2x ( x + 5 ) ( x − 2 y )

Step-by-step explanation:

1) factor out 2x from the equation

2) factor out x from the equation

3) factor out -2y from the equation

4) factor out x + 5 from the equation

2x ( x + 5 ) ( x − 2 y )

8 0
3 years ago
spencer spent 4 hours doing chores over the weekend. If he spent 2/3 for an hour on each chore, how many chores did he do.
Elina [12.6K]
2/3 + 2/3 + 2/3 + 2/3
8/3
2 2/3
4 0
3 years ago
Can someone help me with this? I’ll mark you brainliest
nirvana33 [79]

Answer:

sorry man can't help you with this one

8 0
2 years ago
at the beginning of the day stock cuz opened at $7.25 at the end of the day it closed at $6.88 what is the rate change of stock
Vsevolod [243]
The absolute change is the difference: 6.88 - 7.25 = -0.37

The rate of change is that divided by the originalprice x 100

Ratre of change: (-0.37/7.25 )*100 = -4.93%

4 0
3 years ago
Read 2 more answers
if we increased one side of a square by 5 units and decreased the other by 3 units the area of the resulting rectangle would be
zvonat [6]

Answer:

18 units

Step-by-step explanation:

So let's list out the sides.

for the first square let's just call them x

for the second square then they would be x+5 and x-3

So let's write out their areas we will cal the area of the first one z

x*x = z

(x+5)*(x-3) = z+21

since z = x^2 we can set up the second equation as a quadratic.

(x+5)*(x-3) = x^2 + 21

x^2 - 3x + 5x - 15 = x^2 + 21

But look, the x^2s cancel out

2x - 15 = 21

2x = 36

x = 18

Test it out and see if it fits the description, And if you don't understand anything just let me know so I can explain more.  

3 0
3 years ago
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