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3 years ago

What percent id 25 of 100?

Mathematics

1 answer:

Cloud [144]3 years ago

6 0

25/100 is equal to 25%.

Percents are always out of 100.
So 25/100 is 25%.

Hope this helped☺☺

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A ball is dropped from a height of 8 feet. If every time it bounces, it bounces 60% of its previous height, what is the total di

vladimir1956 [14]

Answer:

Step-by-step explanation:

Initial height of the ball = 8feet

If it bounces 60% of its previous height, its new height will be;

60% of 8

= 60/100 * 8

= 480/100

= 4.8 ft

If it bounces 60% of its current distance, new height will be expressed as;

60% of 4.8

= 0.6 * 4.8

= 2.88

The height of the ball will keep reducing and form a geometric progression of the form 8, 4.8, 2.88...

In order to get the total distance traveled by the ball, we need to calculate the sum to infinity of the sequence;

S∞ = a/1-r where;

a is the first term = 8

r is the common ratio

$r = \frac{4.8}{8} = \frac{2.88}{4.8}\\r = 0.6$

Substitute into the formula;

S∞ = a/1-r

S∞ = 8/1-0.6

S∞ = 8/0.4

S∞ = 20feet

Hence the total distance traveled by the ball is 20feet

8 0

3 years ago

B. Write the following in exponential notation.then identity the base and the exponent.

Alchen [17]

Answer:

1. $8^5$ , base is 8 and exponent is 5

2. $(-1)^7$ , the base is -1 and the exponent is 7

3. -2 * $a^3$ , the base is a and the exponent is 3

8 0

3 years ago

If the initial velocity stays the same, but the height the projectile is launched from changes , how would the amount of time ch

pickupchik [31]

Answer:

Part A

The height to which the projectile reaches is given by the following formula;

$\Delta y = y-y_0 = v_{0y} \times t-\dfrac{1}{2} \times g \times t^2$

Where;

$v_{0y}$ = The initial velocity of the projectile = Stays the same

y = The height the projectile reaches

y₀ = The height from which the projectile is launched

g = The acceleration due to gravity

t = The time taken

Given that the projectile has the same initial velocity, the variation of Δy with time, 't', will be the same when the project is launched from a different height, and the time change that it takes for the projectile to reach the maximum height will be the same for the previous launch height

Part B

From the change in eight of the projectile, Δy = y - y₀, the maximum height reached, 'y', is therefore given as follows;

y = Δy + y₀

The maximum height will increase by 'y₀', where 'y₀' is the difference between new height and the previous height, $y_i$

That is, if y₀ > $y_i$ , the maximum height reached increases and if y₀ < $y_i$ , y₀ will be added as y = Δy - y₀ and the maximum height reached decreases

Step-by-step explanation:

6 0

3 years ago

Pls answer

Paladinen [302]

Answer:

-2/1 or -2

Step-by-step explanation:

On the graph plot the points, draw a line to connect them, draw a right triangle, the up will be the 2 and the across is the 1. It is negative b/c it slopes down to the right.

Mark me as brainliest if this helps!

4 0

3 years ago

Dana is making a seating chart for an awards banquet. There are 152 people coming to the banquet.

yaroslaw [1]

Answer:

Step-by-step explanation:

152/8

5 0

3 years ago

Read 2 more answers