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slega [8]
2 years ago
5

A quarterback on a football team throws the football down the field. The height (h) in feet of the ball when it has traveled a h

orizontal distance of x yards is given by the quadratic function
Mathematics
1 answer:
zimovet [89]2 years ago
8 0
Use the equation

t = -b / (2a)

where:
a = -16
b = 30.4

Plug these values into the equation.


b)

Evaluate h(t) at the time of maximum height. The time of maximum height is the value found in previous part.


c)

Set h(t) equal to 3 and solve for t.

3 = -16t2 + 30.4t + 5

0 = -16t2 + 30.4t + 2


Solve this quadratic equation for t. I suggest you use the quadratic formula to solve for.
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Christine took 3 tests and had an average of 76. She has one more test to take and she wants an average of 80. What is the lowes
amm1812

Answer: She has to score a minimum of 92 marks to take her average to 80

Step-by-step explanation:

Let the equation be

Three months total = 76 x 3 = 228

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6 0
3 years ago
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3 years ago
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4 0
3 years ago
Solve for x in the equation x2 - 12x+ 36 = 90
12345 [234]

Answer:

6 + 3\sqrt{10\\} or 6 - 3\sqrt{10\\}

Step-by-step explanation:

x^2 - 12x + 36 = 90

x^2 - 12x - 54 = 0

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a = 1, b= -12, c= -54

6 + 3\sqrt{10\\} or 6 - 3\sqrt{10\\}

6 0
3 years ago
What is the equation of this line?<br><br>A: y=-3/2x<br>B: y=2/3x<br>C: y=-2/3x <br>D: y=3/2x​
creativ13 [48]

Answer:

b) y = 2/3x

Step-by-step explanation:

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I will be using (3,2) and (-3,-2) to find the slope:

m=\frac{-2-2}{-3-3}\\m=\frac{-4}{-6} \\m = \frac{2}{3}

y = mx + b\\y = \frac{2}{3}x+b

(3,2)

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y=mx+b\\\\y = \frac{2}{3}x+0\\\\y = \frac{2}{3}x

Hope this helps!

8 0
2 years ago
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