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2 years ago

I need help with this please help me . It’s a math test

Mathematics

1 answer:

JulsSmile [24]2 years ago

8 0

Answer:

Where is the question that you need help with?

Step-by-step explanation:

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2 years ago

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NeTakaya

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Step-by-step explanation:

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2 years ago

HELP memejeieieooJSINEKEJEHEIE

Galina-37 [17]

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2 years ago

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WILL GIVE BRAINLIEST A rocket is launched vertically from the ground with an initial velocity of 64. Write a quadratic function

tiny-mole [99]

Answer:

$h=64t-4.9t^{2}$

Please refer to the attached graph.

Step-by-step explanation:

Given that

Initial velocity of rocket = 64 and is launched vertically.

To find:

Quadratic equation in time to represent the height of rocket in feet.

Solution:

Unit of initial velocity is not given in the question statement, let the velocity be in feet/second only.

Initial velocity, u = 64 feet/s

The acceleration will be = -g because it is going opposite to gravitational force so it will be negative acceleration motion (speed will be decreasing) so -g will be the acceleration.

Formula for distance traveled is given as:

$s=ut+\dfrac{1}{2}at^2$

Here Let us represent s by 'h'

a = -g = 9.8 m/ $s^2$

Let us put the known values in the formula:

$h=64t+\dfrac{1}{2}(-9.8)t^2\\\Rightarrow h =64t-4.9t^2$

It is a quadratic equation, the equation represents the graph of a parabola.

Please refer to the attached graph.

Value of height is 0 at 0 second and ~13 seconds

6 0

3 years ago

ASAP NO ROCKY I NEED THIS NOOOWWWWW PLEASE AND THANK YOU

hram777 [196]

Answer:

Henry's balloon was farther from the town at the beginning and Henry's balloon traveled more quickly.

Step-by-step explanation:

The distance of Tasha's balloon from the town is represented by the function y = 8x+ 20

Where y is the distance in miles from the town and x represents the time of fly in hours.

So, at the start of the journey i.e. at x = 0, y = 20 miles {From equation (1)} from the town.

Again, Tasha's balloon is traveling at a rate of 8 miles per hour.

Now, Henry's balloon begins 30 miles from the town and is 48 miles from the town after 2 hours.

So, Henry's balloon traveling with the speed of miles per hour.

Therefore, Henry's balloon was farther from the town at the beginning i.e. 30 miles from the town. And Henry's balloon traveled more quickly i.e at the rate of 9 miles per hour. (Answer)

happy to help:)

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2 years ago

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