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brilliants [131]
3 years ago
7

A ball is dropped from a height of 25feet and allowed to bounce until it comes to a rest. Each time the ball bounces it rebounds

to 4/5 of its previous height
Drag tiles to create an equation you could use to find the height to which the ball rebounds after it hits the floor the third time,h3

H3= ...•... ...
3,4,4/5,25

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

H3 = 25 * \frac{4}{5} * \frac{4}{5}* \frac{4}{5}

Step-by-step explanation:

Given

Initial\ Height =25

Rebound = \frac{4}{5}

Required

Determine the height at the third rebound

At first rebound;

H1 = 25 * \frac{4}{5}

Second rebound

H2 = 25 * \frac{4}{5}* \frac{4}{5}

Third rebound

H3 = 25 * \frac{4}{5} * \frac{4}{5}* \frac{4}{5}

Hence; the equation is:

H3 = 25 * \frac{4}{5} * \frac{4}{5}* \frac{4}{5}

Solving further;

H3 = 12.8\ ft

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Which set of values could be from a direct proportion?
docker41 [41]

Answer:

The second option

Step-by-step explanation:

The second option because it is the one in which if you multiply f4 to the values of x, you would get y.

And that is why it is the second option.

8 0
3 years ago
If y varies directly with x and y is 37.4 when x is 17, what is the value of x when y is 13.2?
borishaifa [10]

Answer:

6

Step-by-step explanation:

We have y ∝ x which is another way of saying y varies directly with x

We can rewrite the direct proportion relation y ∝ x as y = k.x where k is a constant - the constant of proportionality

So y = kx or x = y/k

using y and x values know, we can solve for k and then solve for any x given y

We have

y = 37.4 =  k (17)

Therefore k = (37.4/17) = 2.2

To find x given y = 13.2, use the second equation
x = y/k = 13.2 / 2.2 =  6

8 0
1 year ago
Pls help I hate think central giving people what ever they want if you get it right
Anettt [7]

Answer:

110 cubic inches.

Step-by-step explanation:

Break the figure into 3D shapes you can find the volume of:

5x2x3 = 30

8x5x2 = 80

Add the 2volumes together:

30+80= 110

Hope this helps! Have a good day!

8 0
2 years ago
After 2 females leave a party, there are twice as many males as females. Then 9 males leave and there are twice as many females
ira [324]

Answer: 9 people are left at the party

Step-by-step explanation:

There was originally 8 females and 12 males

8-2 = 6

Twice the males as females

9 men leave which leaves 3 men and 6 women which is twice as many men

Hope this helps!

8 0
3 years ago
Standardized tests: In a particular year, the mean score on the ACT test was and the standard deviation was . The mean score on
Scorpion4ik [409]

Complete question :

Standardized tests: In a particular year, the mean score on the ACT test was 19.3 and the standard deviation was 5.3. The mean score on the SAT mathematics test was 532 and the standard deviation was 128. The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Part: 0/4 Part 1 of 4 (a) Find the z-score for an ACT score of 26. The Z-score for an ACT score of 26 is

Answer:

1.26

Step-by-step explanation:

Given that:

For ACT:

Mean score, m = 19.3

Standard deviation, s = 5.3

Zscore for ACT score of 26;

Using the Zscore formula :

(x - mean) / standard deviation

x = 26

Zscore :

(26 - 19.3) / 5.3

= 6.7 / 5.3

= 1.2641509

= 1.26

6 0
3 years ago
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