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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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The value of x is 11

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A certain company's main source of income is selling socks. The company's annual profit (in millions of dollars) as a function o
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4 0
2 years ago
The graph of a function f(x) is shown below: plot ordered pairs negative 1, negative 3 and 0, 1 and 1, 2.2 and 2, 3
JulijaS [17]

we have the points

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Using a graphing tool

see the attached figure  

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6 0
3 years ago
cameron is 3 years old older than karlee. karlee is two years older than denise. the sum of cameron,karlee,and denise age is 49.
Mrac [35]

Subtract 5 (Cameron) and 2 (Karlee) from 49.

Why: Denise's age is basically the basic number. Karlee would be 2 years older, so subtract 2 from 49. You get 47. Cameron is 5 years older than Denise, so subtract 5. You get 42 and divide that by 3 since there are 3 people.

49 - 7 = 42

42 divide by 3 = 14

Check:

14 + 5 = 19

14 + 2 = 16

14 + 0 = 14

19 + 16 + 14 =  49

19 (Cameron) - 16 (Karlee) = 3 years older

16 (Karlee) - 14 (Denise) = 2 years older

19 (Cameron) - 14 (Denise) = 5 years older

Hopes this helps!

7 0
3 years ago
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