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AnnyKZ [126]
3 years ago
8

The height y of a ball (in feet) is given by the function y = – 15 x + 2x + 4

Mathematics
1 answer:
____ [38]3 years ago
6 0
4 ft
It’s four feet because 4 is the constant or the y intercept. This means that when no action is done, it’s at four ft
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Write a polynomial that represents the area of the rectangle
Eduardwww [97]

Multiplying polynomial:

a^m * a^n = a^m + n


Hope this helped!!!

3 0
3 years ago
Solve for x and y:<br> 3/x -1/y =13/10<br> 1/x + 2/y =9/10
harkovskaia [24]

Answer:

  (x, y) = (2, 5)

Step-by-step explanation:

I find it easier to solve equations like this by solving for x' = 1/x and y' = 1/y. The equations then become ...

  3x' -y' = 13/10

  x' +2y' = 9/10

Adding twice the first equation to the second, we get ...

  2(3x' -y') +(x' +2y') = 2(13/10) +(9/10)

  7x' = 35/10 . . . . . . simplify

  x' = 5/10 = 1/2 . . . . divide by 7

Using the first equation to find y', we have ...

  y' = 3x' -13/10 = 3(5/10) -13/10 = 2/10 = 1/5

So, the solution is ...

  x = 1/x' = 1/(1/2) = 2

  y = 1/y' = 1/(1/5) = 5

  (x, y) = (2, 5)

_____

The attached graph shows the original equations. There are two points of intersection of the curves, one at (0, 0). Of course, both equations are undefined at that point, so each graph will have a "hole" there.

3 0
3 years ago
Lines l and k are parallel to each other. mA=120 degrees. and mC=80 degrees. What is the number of degrees in mB??
djverab [1.8K]

Answer:

45

Step-by-step explanation:

6 0
3 years ago
If the diameter of a circle changes from 5 cm to 15 cm, how will the circumference change? A) multiplies by 1 3 B) multiplies by
andreyandreev [35.5K]
The length of a circumference: l=πD
l₁=π×5=5π
l₂=π×15=15π
Then l₂÷l₁=15π÷5π=3 and the answer is B)
5 0
3 years ago
Read 2 more answers
Ummm Hey,I don't know the answer for this question,when I solve the problem my answer always 6 but the real answer is 2 so I nee
kramer

umm ok then its 2...

4 0
3 years ago
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