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2 years ago

Can someone help me please

Mathematics

1 answer:

Leya [2.2K]2 years ago

4 0

Quadratic functions are functions that has a leading degree of 2. The time that the rocket will hit the ground is after 15.99 seconds

<h3>Quadratic functions</h3>

Quadratic functions are functions that has a leading degree of 2. Given the function that represents the height of the rocket as;

y = -16x² + 247x + 141

The point where the rocket will hit the ground is when the height is at 0 feet that is y = 0.

Substitute

-16x² + 247x + 141 = 0

16x² - 247x - 141 = 0

Factorize

On factorizing, the time that the rocket will hit the ground is after 15.99 seconds

Learn more on function here: brainly.com/question/25638609

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A game is packaged in a box. Each game cube has a side length of 2 inches. How many games can be

gtnhenbr [62]

Answer:

432

Step-by-step explanation:

12/2 =6

24/2 = 12

12 * 6 * 6 is your answer.

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4 years ago

A. 3.4

seropon [69]

A is your answer 3.4

Use Pythagorean Theroum

10.2 squared = 9.6 squared + x squared
104= 92.6+x squared
x squared = 11.4
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round x to 3.4

Hope that helps!

4 0

3 years ago

In a continuous series, mean(x) = 80, assumed mean(A) = 60 and<br>EF=40 then find the value of EFd.

Aneli [31]

Using the given information, the value of Σfd is 800

<h3>Calculating mean using Assumed mean </h3>

From the question, we are to determine the value of Σfd

The formula for mean, using the assumed mean method is given by

$\bar x = A + \frac{\sum fd}{\sum f}$

Where $\bar x$ is the mean

A is the assumed mean

From the given information,

$\bar x = 80$

$A = 60$

$\sum f = 40$

Putting the parameters into the equation, we get

$80 = 60 + \frac{\sum fd}{40}$

$80-60 = \frac{\sum fd}{40}$

$20 = \frac{\sum fd}{40}$

$\sum fd = 20 \times 40$

$\sum fd = 800$

Hence, the value of Σfd is 800

Learn more on Mean here: brainly.com/question/20118982

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8 0

2 years ago

Determine the initial height of the ball and the time interval before the ball hits the ground. initial height = 0; hits the gro

Anestetic [448]

Answer:

Answer: B) initial height = 150; hits the ground between 5 and 6 seconds

8 0

3 years ago

Read 2 more answers

a girl that is 4 feet tall standing 2 feet from a mirror sees the reflection of a flag pole that is 12 feet from the mirror how

Roman55 [17]

Answer:

the pole is 24 feet tall

Step-by-step explanation:

the mirror make every thing half its size

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3 years ago