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Mkey [24]
3 years ago
10

I need help? someone please explain to me

Mathematics
1 answer:
murzikaleks [220]3 years ago
7 0

Answer:

Step-by-step explanation:

add me on instgram @mack.thrasher

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can someone pls help me? i have no idea what to do. pls show the work steps for the questions. i will mark u as
tiny-mole [99]

Ok, so the question is based on geometric progression. Remember, the formula for calculating the nth-term of a geometric progression is: a*r^{n-1}. The a in the expression stands for the 1st term of the sequence, and r is the common ratio of the elements of the sequence. Now let's take a look at the problem.

"A ping pong ball has a 75% rebound ration". We can infer that our common ratio, r, is 75% which is 0.75.

"When you drop it from a height of k feet...", this means the first height you drop it from, a.k.a, the first term.

Now going back to the expression, the nth-term = a*r^{n-1}, we can substitute our common ration, 0.75 with r, and our 1st term, k, with a. This becomes: k * 0.75^{n-1}. This becomes our expression.

a. The highest height achieved by the ball after six bounces. Our nth-term here is 6, so let's use our expression to find the 6th term. n_{6} = 235 * 0.75^{6-1} = 235*0.75^{5} = 235*0.2373 = 55.7655ft

b. The total distance travelled by the ball when it strikes the ground for the 12th time. This involves the use of the sum of elements in the geometric progression. The formula for that is \frac{a(1 - r^{n})}{1-r}, provided that r is less than 1, which it is in this case, since 0.75 is less than one. Our nth-term here is 12, so we substitute.

\frac{235(1-0.75^{12})}{(1-0.75)} = 910.2242ft

6 0
3 years ago
A farmer is dividing 128 eggs into 5 crates , how many eggs will go into each crate?
GaryK [48]
This is a division problem. You can use the standard algorithm of 128/ 5. Or you can create equal groups (draw five circles) and count out eggs until you distribute them all. I would start with 20 in each circle. That would be 20+ 20+ 20+ 20+ 20= 100 Then think 128-100= 28 Next count by 5's. 5+ 5+ 5+ 5+ 5= 25 Then think what is 28-25= 3 so 128/ 5= 25 with a reminder of 3 eggs left over.
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3 years ago
Please help me answer this question
Alekssandra [29.7K]
10 divided by 200= 20
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3 years ago
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Claudia has 6543 followers on FaceBook. She wants to divide her followers into groups of three. How many groups of three will Cl
Verdich [7]
6543 divided by 3 = 2181 followers per group
5 0
3 years ago
&gt;…_~§-+*First Answer Gets Brainliest*+-§~_…&lt;<br> Questions In the picture!
Gala2k [10]

Answer:

where is the pic?? i dont see it

Step-by-step explanation:

5 0
3 years ago
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