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Monica [59]
2 years ago
5

If f(c)=2x^2-x, find f(-4) - f(9)

Mathematics
1 answer:
murzikaleks [220]2 years ago
7 0

Answer:

-13f

  • Simplify by combining the sum of 4 + 9 with the term "f" and assume integers will be negative.
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Joe needs to read 4 novels each month.
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9514 1404 393

Answer:

  • N = 4M
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Step-by-step explanation:

If Joe reads 4 novels each month, the number of novels read will be 4 times the number of months that have passed.

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When M=11, we have ...

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Joe needs to read 44 novels in 11 months.

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3 years ago
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Please help ASAP &lt;3 Correct answer gets brainliest :3
Goshia [24]

Answer:

1. 1,016 sq. m.

2. 119 sq. m.

Step-by-step explanation:

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18 x 8 = 144

14 x 8 = 112

2 ( 252 ) + 2 ( 144 ) + 2 ( 112 )

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6 0
3 years ago
If a ball is thrown directly upward with a velocity of 50ft/s, it's height (in feet) after t seconds is given by y=50t-16t^2 wha
Tomtit [17]

Answer:

39.0625 ft

Step-by-step explanation:

Since the function is a quadratic representing height, and the coefficient of the t² is negative, the vertex of the parabola will be the maximum height achieved by the ball.  

The general form for a quadratic equation is ax² + bx + c, here a is -16, and b is 50

To find the x coordinate of the vertex, use   x = -b/(2a)

We have x = -50/[2(-16)]

               

                  x = -50/-32

             

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Now plug that into the equation to find the y value, which will be the height...

y = 50(25/16) - 16(25/16)²

    y = 1250/16 - 16(625/256)

        y = 1250/16 - 625/16

              y = 625/16

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7 0
3 years ago
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