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andrew-mc [135]
3 years ago
13

Darlene kicks a soccer ball off the ground and in the air, with an initial velocity of 34 feet per second. using the formula h(t

) = −16t2 vt s, what is the maximum height the soccer ball reaches?
17.7 feet
18.1 feet
19.3 feet
20.2 feet
Mathematics
2 answers:
monitta3 years ago
7 0

Answer:

18.1 is the answer. I am glad I could help.



xz_007 [3.2K]3 years ago
7 0

Answer:

The maximum height of ball is 18.1 feet. Option 2 is correct.

Step-by-step explanation:

The height of the soccer ball is defined by the formula,

h(t)=-16t^2+vt+s

Where, v is initial velocity and s is initial height of ball.

It is given that initial velocity is 34 feet per second and the initial height of ball is 0.

h(t)=-16t^2+34t

The leading coefficient is negative, so it is a downward parabola. The vertex of a downward parabola is point of maxima.

The vertex of a parabola f(x)=ax^2+bx+c is

(\frac{-b}{2a},f(\frac{-b}{2a}))

\frac{-b}{2a}=\frac{-34}{2(-16)}=1.0625

h(1.0625)=-16(1.0625)^2+34(1.0625)=18.0625\approx 18.1

Therefore the maximum height of ball is 18.1 feet. Option 2 is correct.

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I could use some help!!
12345 [234]

Answer:

84

Step-by-step explanation:

The interquartile range is obtained using the relation :

Third quartile (Q3). - First quartile (Q1)

From. The boxplot :

Q3 = 96

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Interquartile range (IQR) = Q3 - Q1 = 96 - 12 = 84

6 0
2 years ago
3(h - 7) + 3 = 9 what is H =
MrRissso [65]

Answer:

9

Step-by-step explanation:

3(h-7)+3=9

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3h-18=9

3h=9+18

3h=27

h=27/3

h=9

Please mark me as Brainliest if you're satisfied with the answer.

7 0
3 years ago
Read 2 more answers
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kupik [55]

Answer:

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Step-by-step explanation:

speed = distance/time

Distance = 17km

Time = 0.5 or 1/2 hours because it's 30 minutes between 17:15 to 17:45, and 30 minutes is a half of an hour and you want km over hours

So

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7 0
2 years ago
Sierra left $4.50 as a tip for a waiter. THis was 18% of the bull before the tip, How much was her total bill before the tip?
andreyandreev [35.5K]

let's say the bill without the tip is "x" amount, so that'd be the 100% of the bill, but we also know that 4.50 is the 18% of "x".

so if 4.50 is the 18% of "x", how much is "x"?


\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 4.50&18\\ x&100 \end{array}\implies \cfrac{4.5}{x}=\cfrac{18}{100}\implies 450=18x \\\\\\ \cfrac{450}{18}=x\implies 25=x

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I am not sure about b cut I think C is 10

5 0
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