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Whitepunk [10]
3 years ago
11

When Mr. Smith kicks a football, it has a vertical speed of 20 m/s, and its height, h in meters after t seconds can be modeled b

y the equation h=20t−5t^2 .
Part A.
How long is the football in the air before it lands on the ground?
​
seconds

Part B
In how many seconds will the football reach its maximum height?
​
seconds
​
​Part C
​What is the maximum height that the football will reach?
​
meters
Mathematics
1 answer:
adelina 88 [10]3 years ago
6 0

Answer:

look up desmos and do it on there it helps alot

Step-by-step explanation:

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The graph shows the distance a hiker is from their car and represents a linear
Amanda [17]

The distance of the hiker of a linear function.

The true statement is <em>(d) The y-intercept is (0, 2), and the 2 represents the number of miles  from the car at the start of this time period.</em>

From the graph, we can see that the graph crosses the y-axis at: (0,2)

This means that, the y-intercept is (0,2), and 2 represents the number of miles, he started with.

Hence, the correct statement is (d)

Read more about y-intercepts at:

brainly.com/question/1354826

5 0
2 years ago
Through (2, -1), perp. to y = -2x-3
kramer

9514 1404 393

Answer:

  y = 1/2x -2

Step-by-step explanation:

The given equation is in slope-intercept form, so you recognize its slope is -2. The perpendicular line will have a slope that is the opposite reciprocal of that, so is -1/-2 = 1/2.

The y-intercept can be found from ...

  b = y -mx . . . . . for line of slope m through point (x, y)

  b = -1 -(1/2)(2) = -1 -1 = -2

Then the slope-intercept equation of the perpendicular line is ...

  y = 1/2x -2

6 0
2 years ago
Which shape has parallel lines and at least one acute angle
galina1969 [7]

Answer:

c.

Step-by-step explanation:

c is the only shape on here with acute angles, the top and bottom bases are parallel w/ each other

3 0
2 years ago
Read 2 more answers
F Tanisha has ​$ 1,000 to invest at 5 % per annum compounded ​, how long will it be before she has ​$1,400 ​? If the compounding
vladimir2022 [97]

With annual compounding, the number of years for 1000 to become 1400 is 6.7 years

With continous compounding, the number of years for 1000 to become 1400 is 1.35 years

<h3>How long would it take $1000 to become $1,400?</h3>

With annual compounding, the formula that would be used is:

(In FV / PV) / r

Where:

  • FV = future value
  • PV = present value
  • r = interest rate

(In 1400 / 1000) / 0.05 = 6.7 years

With continous compounding, the formula that would be used is:

(In 1400 / 1000) / (In e^r)

Where r = interest rate

((In 1400 / 1000) / (In e^0.05) = 1.35 years

To learn more about how to determine the number of years, please check: : brainly.com/question/21841217

#SPJ1

5 0
2 years ago
PLEASE NO LINKS Thank you :)
alexgriva [62]

Answer:

hon you never asked a question or added an image. id be happy to try and help if you do!

6 0
2 years ago
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