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Andrei [34K]
3 years ago
5

How are quadratic equations represented in a real world situation

Mathematics
1 answer:
OLga [1]3 years ago
6 0

one way that you can represent it is for example if someone kick a soccerball.

ax^2+bx+c

ax^2 is a quadratic function which in this senario represents the balls downward movement.

bx is a linear function which in this senario represents the velocity of the ball.

c is the starting point the height that the ball starts at but since the ball would more likely be on the ground this value

would be 0.

your x value represents time and for any x value you plug in gives you the height of the ball.

so quadratics in real life situations are used to show the distance or movement of an object over a certaint period in time.

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The inequality 10.45b + 56.50 < 292.67 is used to find the number of boxes (b) that can be loaded on a truck without exceedin
PSYCHO15rus [73]
We solve the inequality by subtracting 56.50 from both sides of the equation,
                                10.45b + 56.50 - 56.50 < 292.67 - 56.50 
                                        10.45b < 236.17
Then, divide both sides of the inequality by 10.45
                                             b < 22.6
The solution suggests that the number of boxes than can be loaded on a truck without exceeding the weight limit of the truck should always be lesser than 22.6. Since we are talking about number of boxes, the maximum number of boxes that can be loaded should only be 22. 
6 0
3 years ago
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Find the inner product for (-4,9,8) . (3,2,-2) and state whether the vectors are perpendicular.
drek231 [11]

Answer:

-10; no

Step-by-step explanation:

<h2>-4*3 + 9*2 + 8*-2 = -10</h2><h2></h2><h2>-10 does not equal 0 so it is not perpendicular</h2>

6 0
3 years ago
Expand the following:<br> a.x(x+5)<br> b.x(3x-1)<br> c.2x(2x+3)<br> d.5x(x-3y)
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It would A because that’s obviously the right answer.
8 0
3 years ago
A rectangular yard has dimensions 10 meters by 8 meters. In the middle of the yard is a rectangular pond of 8 square meters, lea
Nikolay [14]

hahahaha i had this same question in my grade

8 0
3 years ago
A new truck costs $32,000 if the truck is worth 24,500 after three years write an explicit formula for the value of the car afte
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Answer:

Step-by-step explanation:

depreciation for three years = 32000 - 24500 = $ 7500

depreciation per year = 7500/3 = $ 2500

depreciation % = (2500/32000)*100 = 7.81%

Value of truck after n years = 32000 * (7.81%)*n

8 0
3 years ago
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