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3 years ago

Join gimkit need as many players as possible 55769

Mathematics

1 answer:

Harman [31]3 years ago

8 0

Answer:

Bet

Step-by-step explanation:

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A rocket takes off from a height of 30 feet with an initial velocity of 150 ft /sec. The equation that models the path that the

algol13

Answer:

The rocket will hit the floor at 9.57 seconds

Step-by-step explanation:

Given

$G(x) = -16x^2 + 150x + 30$

Take off height = 30ft

Initial velocity= 150ft/s

Required [Missing from the question]

Time to hit the ground

The rocket will hit the ground at:

$G(x) = 0$

So, we have:

$0 = -16x^2 + 150x + 30$

Rewrite as:

$16x^2 - 150x - 30=0$

Solve using quadratic formula, we have:

$x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where:

$a= 16\\ b = -150\\ c = -30$

So, we have:

$x = \frac{-(-150) \± \sqrt{(-150)^2 - 4*16*(-30)}}{2*16}$

$x = \frac{150 \± \sqrt{22500 +1920}}{32}$

$x = \frac{150 \± \sqrt{24420}}{32}$

$x = \frac{150 \± 156.27}{32}$

Split:

$x = \frac{150 + 156.27}{32}\ or\ \frac{150 - 156.27}{32}$

$x = \frac{306.27}{32}\ or\ \frac{-6.27}{32}$

Time cannot be negative;

So:

$x = \frac{306.27}{32}$

$x = 9.57$

<em>Hence, the rocket will hit the floor at 9.57 seconds</em>

3 0

3 years ago

chang reads 9 3/4chapters in 4 1/2 hours. what is the unit rate in chapters per hour? write your answer as a fraction or a mixed

snow_lady [41]

Answer:

2 1/6 chapters per hour

Step-by-step explanation:

Find the unit rate, as follows:

9.75 chapters

----------------------- = 2.166666 ... chapters per hour, or

4.5 hours 2 1/6 chapters per hour

3 0

3 years ago

Mrs. Taft keeps inventory of the copy paper in the school copier room. Nine weeks ago, there were 150 reams of copy paper in the

Novay_Z [31]

Answer:

-9/65

Step-by-step explanation:

5 0

3 years ago

10 rational numbers between -2 and 1/8

Kryger [21]

Answer:

there should not be negative number in rational number

6 0

3 years ago

I need help!!!!!!!!!

Natalka [10]

Answer:

10 2/3 x 9/10 = 9 3/5

1 x 10 2/3 = 10 2/3

10 2/3 x 2 1/3 = 24 8/9

1/8 x 10 2/3 = 1 1/3

10 2/3 x 3/5 = 6 2/5.

Hope this helps!

8 0

2 years ago

Join gimkit need as many players as possible 55769​

Join gimkit need as many players as possible 55769