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andreev551 [17]
3 years ago
8

Only answer if you’re sure... will give Brainly thank you :)

Mathematics
1 answer:
PolarNik [594]3 years ago
3 0

Answer:

Step-by-step explanation:

f(x) = x^2 + 3x - x/2

f(x) = x^2 + 2.5x    

   

  • 3x - 1/2x =
  • 6x/2 - 1/2x =
  • 5x/2 =
  • 2.5x

f(6) = 6^2 + 2.5*6

f(6) = 36 + 15

f(6) = 51

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BRAINLY IF CORRECT!
julsineya [31]

Answer:

1/4x + y = 4

Step-by-step explanation:

y = -1/4x + 4

Add 1/4x on both sides

1/4x + y = 4

I hope this helped and please mark me as brainliest!

5 0
3 years ago
Elizabeth and her sister earned money shoveling snow over winter break. Altogether, they shoveled for a
Phoenix [80]

Answer:

Elizabeth spent 17.5 hours and her sister spent 12.5 hours.

Step-by-step explanation:

Let x be the number of hours that Elizabeth shoveled and y be the number of hours that her sister shoveled.

Number of hours they shoveled = 30

So, x + y = 30 or

y = 30 - x

Jenna charged $12 per sidewalk.

So, her total earnings = 12x

Her sister charged $11 per sidewalk.

So, her total earnings = 11y.

Their total income = $347.50.

So, 12x + 11y = 347.5

Substitute y = 30 - x,

12x + 11(30 - x) = 347.5

12x + 330 - 11x = 347.5

x + 330 = 347.5

x = 347.5 - 330

x = 17.5 and

y = 30 - x = 30 - 17.5 = 12.5.

Hence, Elizabeth spent 17.5 hours and her sister spent 12.5 hours.

4 0
3 years ago
Consider the figure. Determine the value of y.​
slava [35]

Answer:

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y = 133

6 0
3 years ago
Which right prism would have the same volume as a square prism with a base area of 36 m2 and a height of 3 m?
Neko [114]
Well to find the volume of the square prism, first you need to multiply the base area (36) by its height (3) and you would end up with 108m3 as the volume. You may not be familiar with this because u are most likely taught length times width times height as volume, but what i just did is the same because length times width is the sum of the base area, and height was already given. Anyways, now that we have gotten the square prism volume (108m3) we need to find which prism has the same volume. I’m gonna save u from searching and tell you that it is the rectangular prism because length times width times height (18x2x3) equaled 108 just like the square prism.
8 0
3 years ago
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