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Kryger [21]
3 years ago
14

NEED HELP ASAP! Subtract. (4x^2+8x−2)−(2x^2−4x+3)Answer in standard form

Mathematics
1 answer:
AlekseyPX3 years ago
4 0
(4x^2+8x-2)-(2x^2-4x+3)\\\\=4x^2+8x-2-2x^2+4x-3\\\\=(4x^2-2x^2)+(8x+4x)+(-2-3)\\\\=\boxed{2x^2+12x-5}
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The perimeter of a rectangle is 40 feet. if the lenght is 15 feet, 6 inches, what is the width
SpyIntel [72]
4 feet 6 inches
Step-by-step explanation:
P=2(l+w) [the addition of all sides of the rectangle]
P = 40'
L = 15’6”
So, 40' = 2 (15’6’ + w)
40' = 31’ + 2w
9' = 2w
4’6” = w
If it's easier you can break it change feet into inches and then change back to feet.
3 0
3 years ago
the cost of state college tuition is currently at $22,500 per year and is rising at a rate of 4% each year. What will the same c
givi [52]

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3 0
3 years ago
I need help with this?
Masja [62]

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4 0
3 years ago
The sum is 6 and the difference is -10
andrezito [222]

Answer:

-2 & 8

Step-by-step explanation:

  x + y = 6

+(x - y = -10)

___________

  2x    = -4

x = -2

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y = 8

6 0
3 years ago
Did I choose the right graph?
Fudgin [204]

Answer:

Step-by-step explanation:

The - tells you that it is upside down. So that much of your choice is correct for certain.

The 1/8 squishes the graph something fierce. So of those graphs given, the one you chose is most likely correct. But you are right to be a little miffed at the question. You should never have to choose an answer with only a picture to guide you. If you have a graphing calculator, try y = -1/8 x^2 which is a good candidate for all the graphs.

8 0
3 years ago
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