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2 years ago

PLEASE HELP MEE THANK IF U DOOO

Mathematics

1 answer:

fgiga [73]2 years ago

6 0

Answer:

area of parallelogram =base×height

132in²=16.5in×height

132in²/16.5in=height

8 in=height

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Answer:

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If a paper plane is thrown from the top of a 147-foot cliff into the water below, the height of the plane at any given time can

sasho [114]

Answer:

c. 6.5 seconds.

Step-by-step explanation:

We have been given that a a paper plane is thrown from the top of a 147-foot cliff into the water below, the height of the plane at any given time can be determined by the formula $h = -3t^2+147$ , where h is the height of the plane at t seconds.

To find the time, when plane will be at a height of exactly 20.25 feet, we will substitute $h=20.25$ in our given formula and solve for t as:

$20.25= -3t^2+147$

$-3t^2+147=20.25$

$-3t^2+147-147=20.25-147$

$-3t^2=-126.75$

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$t^2=42.25$

Take square root of both sides:

$t=\pm \sqrt{42.25}$

$t=\pm 6.5$

Since time cannot be negative, therefore, the plane will be at a height of exactly 20.25 feet after 6.5 seconds and option 'c' is the correct choice.

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3 years ago

The graph of f(x) = x2 is shifted 3 units to the left to obtain the graph of g(x). Which of the following equations best describ

ANTONII [103]

Answer:

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When a function is shifted to the left or right we can think of a change of units, like a new independent variable is used.

If we have a quadratic function

$f(x)=x^2$