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Zolol [24]
3 years ago
9

The flight of a cannonball toward a hill is described by the parabola y = 2 + 0.12x - 0.002x 2 . the hill slopes upward along a

path given by y = 0.15x. where on the hill does the cannonball land?
Mathematics
1 answer:
Alexandra [31]3 years ago
8 0

To find where on the hill the canonball lands 
So 0.15x = 2 + 0.12x - 0.002x^2 
Taking the LHS expression to the right and rearranging we have -0.002x^2 + 0.12x -
0.15x + 2 = 0. 
So we have -0.002x^2 - 0.03x + 2 = 0  
I'll multiply through by -1 so we have
 0.002x^2 + 0.03x -2 = 0. 
This is a quadratic eqn with two solutions x1 = 25 and x2 = -40 since x cannot be negative x = 25. The second solution y = 0.15 * 25 = 3.75
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Can someone please help me?
Crazy boy [7]

Answer:

70°

Step-by-step explanation:

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a triangle adds up to 180°

so to find x we set this up:

x +55 +55 = 180

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3 0
2 years ago
78% of students in the 7th grade
irina1246 [14]

Answer:

77

Step-by-step explanation:

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(100x273)/78 = 350 students in class so

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3 years ago
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7 0
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Step-by-step explanation:

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So, f(6) - f(1) is between 10 and 20.  

5 0
2 years ago
a box contains 4 yellow, 5 green and 3 blue balls. find the probability of obtaining a yellow ball in a single random draw.
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7 0
1 year ago
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