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Fofino [41]
3 years ago
8

Ms. Gartland bought X number of shirts for the new members of her chorus. The cost

Mathematics
1 answer:
svetlana [45]3 years ago
3 0

Answer: d.

Step-by-step explanation:

each shirt costs 12.25

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Consider a geometric sequence with a first term of 4 and a fourth term of -2.916.
Orlov [11]

Answer:

a) Find the common ratio of this sequence.

Answer: -0.82

b) Find the sum to infinity of this sequence.

Answer: 2.2

Step-by-step explanation:

nth term in geometric series is given by 4\ th \ term = ar^n-1\\-2.196 = 4r^{4-1} \\-2.196/4 = r^{3} \\r = \sqrt[3]{0.549} \\r = 0.82

where

a is the first term

r is the common ratio and

n is the nth term

_________________________________

given

a = 4

4th term = -2.196

let

common ratio of this sequence. be r

4\ th \ term = ar^n-1\\-2.196 = 4r^{4-1} \\-2.196/4 = r^{3} \\r = \sqrt[3]{-0.549} \\r = -0.82

a) Find the common ratio of this sequence.

answer: -0.82

sum of infinity of geometric sequence is given by = a/(1-r)

thus,

sum to infinity of this sequence = 4/(1-(-0.82) = 4/1.82 = 2.2

4 0
3 years ago
I need help with 1-4
worty [1.4K]
1) the longest side is 5cm and the perimeter is 12cm
2) longest side is 12.04 or just 12
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4) Yes it is
6 0
3 years ago
What is 20 times 20plz tell me
vladimir1956 [14]

Answer:

400

Step-by-step explanation:

8 0
3 years ago
Please help im 25% blind
FrozenT [24]

Answer:

c

Step-by-step explanation: all you have to do is work it out

5 0
2 years ago
Explain how you would find the sum of 46+7
Darya [45]

Answer: Method of finding the sum of 46 and 7 is mentioned in below explanation.

Step-by-step explanation:

According to the question, we have to find out 46+7

First, we need to add 6 and 7 by that we get the result 13.

Where, 3 will be the digit in once place of our answer.

And, we need to add 1 in 4, that is 5 by that we get the tenth place digit of our result. which is 5.

So, our complete answer is 53.


8 0
3 years ago
Read 2 more answers
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