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arlik [135]
3 years ago
14

Alain throws a stone off a bridge into a river below. The stone's height (in meters above the water), xxx seconds after Alain th

rew it, is modeled by: h(x)=-5x^2+10x+15h(x)=−5x 2 +10x+15h, left parenthesis, x, right parenthesis, equals, minus, 5, x, start superscript, 2, end superscript, plus, 10, x, plus, 15 What is the height of the stone at the time it is thrown?
Mathematics
2 answers:
Triss [41]3 years ago
5 0

Answer:15 meters

Step-by-step explanation:

Naya [18.7K]3 years ago
4 0
For this case we have the following function:
 h (x) = - 5x ^ 2 + 10x + 15

 By the time the stone is thrown, x = 0.
 We must evaluate this value of x in the function.
 We have then:
 h (0) = - 5 (0) ^ 2 + 10 (0) +15

h (0) = 0 + 0 + 15

h (0) = 15 meters
 Answer:
 The height of the stone at the time is thrown is given by:
 h (0) = 15 meters
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Answer:

Yes

Step-by-step explanation:

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7 0
2 years ago
The number line shows the locations of points P 0. R. and S 털 HR &amp; -7 -6 = Which points have a distance of 5 units between t
Svetradugi [14.3K]

Answer: point P and point S

Step-by-step explanation:

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6 0
2 years ago
Someone help me out with this need a quick respond
ser-zykov [4K]
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8 0
3 years ago
a company owns two dealerships, both of which sell cars and trucks. the first dealership sells a total of 164 cars and trucks. t
OLEGan [10]

Answer:

294 cars.

Step-by-step explanation:

Let x be the number of cars and y be the number of trucks.

We have been given that the first dealership sells a total of 164 cars and trucks. We can represent this information as:

x+y=164...(1)

The second dealership sells twice as many cars and half as many trucks as the first dealership. So the number of cars sold by 2nd dealership will be 2x and number of trucks sold by 2nd dealership will be y/2.

Further, the 2nd dealership sold a total of 229 cars and trucks. We can represent this information as:

2x+\frac{y}{2}=229...(2)

We can see that total number of cars sold on two dealerships will be x+2x=3x.

We will use substitution method to solve for x. From equation (1) we will get,

y=164-x

Substituting this value in equation (2) we will get,

2x+\frac{164-x}{2}=229

Now let us have a common denominator.

\frac{4x}{2}+\frac{164-x}{2}=229

\frac{4x+164-x}{2}=229

Upon multiplying both sides of our equation by 2 we will get,

2\times \frac{4x+164-x}{2}=2\times 229

4x+164-x=458

4x+164-164-x=458-164

4x-x=458-164

3x=294

Therefore, the total number of cars sold by two dealerships is 294.

7 0
3 years ago
A screen printer can pack up to 24 sweatshirts into a box for shipping.
Maru [420]

Answer: 15

Step-by-step explanation:

360 is the amount of sweats you need to ship to a costumer. One box has 24 shirts. This gives you the equation: 360 ÷ 24 = 15.

N is 15

6 0
2 years ago
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