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Alekssandra [29.7K]
2 years ago
15

Find the sum of the series if possible, if not possible explain why:

Mathematics
1 answer:
Zigmanuir [339]2 years ago
6 0

Answer:

Step-by-step explanation:

5/7

Sum of a geometric series is a/(1-r) = 1/(1-(-2/5)) = 5/7

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Find the number of ways you can arrange (a) all of the letters and (b) two of the letters in the word TRY. a. The number of ways
Phantasy [73]

Answer:

a) 6 ways

b) 6 ways

Step-by-step explanation:

a) for all of the letters

for the first letter, we have 3 options

for the second, we have 2 options

for the third, we have 1 option

So the number of options will be;

3 * 2 * 1 = 6

b) for the first, we have 3 options, for the second, we have 2 options

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8 0
2 years ago
Deshaun took 2 5/8 hours to clean the bathroom. Then took 1/4 hours to clean the den . How much total time did deshaun take to c
natulia [17]

Answer:

2.875 hours 2 5/8 plus 1/4 equals 2.875

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3 years ago
Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?
fredd [130]
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3 years ago
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bazaltina [42]

Answer:

8 cookies were left after the bake sale. 72 were sold.

Step-by-step explanation:

64*1.25= 80

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8

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The number left was 10% of the number he made. The number he made was 125% of 64, so the number left was 8

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thats all i could really come up with at the top of my head

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7 0
3 years ago
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