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Vaselesa [24]
2 years ago
11

TA penny is dropped from a height of

Mathematics
1 answer:
Crazy boy [7]2 years ago
3 0

The penny reaches the water at 3.5 seconds

The height function is given as:

d = -16t^2 + 196

<u>(a) Graph the function</u>

See attachment for the graph of the function

<u>(b) Time to reach the water</u>

From the graph, the curve of d = -16t^2 + 196 crosses the x-axis at points t = -3.5 and t = 3.5

But the time (t) cannot be negative.

Hence, the penny reaches the water at 3.5 seconds

Read more about height functions at:

brainly.com/question/10837575

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I WILL MAKE YOU THE BRAINLIEST EASY QUESTION
Oliga [24]






|-1/16--3/16-|-5/16--7/16-|-9/16--11/16-|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|

0                  1/4                      2/4                     3/4                    1

5 0
3 years ago
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A city council consists of eight Democrats and eight Republicans. If a committee of six people is selected, find the probability
saw5 [17]

Answer:

39.16% probability of selecting three Democrats and three Republicans

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, the order in which the people are selected is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes:

3 Democrats, from a set of 8.

3 Republicans, from a set of 8.

D = C_{8,3}*C_{8,3} = (C_{8,3})^{2} = (\frac{8!}{3!5!})^{2} = 56^2 = 3136

Total outcomes:

6 people from a set of 16.

T = \frac{16!}{6!10!} = 8008

Probability:

p = \frac{D}{T} = \frac{3136}{8008} = 0.3916

39.16% probability of selecting three Democrats and three Republicans

5 0
3 years ago
How do you solve this
Katen [24]

Answer:

4x^-4/9y^6

Step-by-step explanation:

If the exponent is outside the bracket, it means that all the terms inside will be raised to that exponent. This means that:

(2x^-2 / 3y^3)^2 = 2^2*(x^-2)^2 / 3^2*(y^3)^2

When exponents are raised to an exponent, the exponents are multiplied together, so (x^-2)^2 will = x^(-2*2) = x^-4

Going through:

2^2*(x^-2)^2 / 3^2*(y^3)^2

=4*x^-4 / 9*y^6

=4x^-4/9y^6

Hope this helped!

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3 years ago
Please check out my insta chasingshadow13
Bad White [126]

Answer:

Ok.......

Step-by-step explanation:

3 0
3 years ago
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Quieres un chocolate?<br> Please help reply correctly in Spanish
Olegator [25]

Answer:

sí, (yo) quiero un chocolate

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