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salantis [7]
3 years ago
14

A collection of dimes is arranged in a triangular array with 17 coins in the base row, 16 in the next, 15 in the next, and so fo

rth.

Mathematics
2 answers:
Alona [7]3 years ago
8 0

Good evening ,

Answer:

<h2>153 dimes.</h2>

Step-by-step explanation:

1+2+3+...+17 =  (17×18)/2 = (17×18)÷2 = 153 dimes.

it’s the sum of 17 terms of a geometric series.

:)

Neko [114]3 years ago
4 0

Answer:

153 dimes

Step-by-step explanation:

17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 153

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x=3\sqrt{7}

Step-by-step explanation:

If a tangent and a secant connect to an exterior point of a circle, the tangent squared is equal to the product of the two segments the secant creates.

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3 years ago
A jet ski rental company charges h dollars for the first hour its jet skis are rented and k
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Answer:

C. h + k (t - 1)

Step-by-step explanation:

<em>If we use an example, you can plug in the numbers and test out which equation works. Say the first hours costs $10 and each hour after that is an additional $5. If someone rents a jet ski for 4 hours, how much did it cost?</em>

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<em />

<em>So now that we know the cost, we can plug in our numbers to these equations to find which one comes out with $25.</em>

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<u>B</u>. 10 + (4 · 5) = 10 + 20 = <u>30</u>

<u>C</u>. 10 + 5 (4 - 1) = 10 + 5 (3) = 10 + 15 = <u>25</u>

<u>D</u>. 10 + 5 (4 + 1) = 10 + 5 (5) = 10 + 25 = <u>35</u>

<u>E</u>. 10 + (4/5 - 1) = 10 + (-0.2) = <u>9.8</u>

<em>C is the only problem that comes out as $25, therefore it must be the correct answer.</em>

8 0
3 years ago
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34kurt
No because 2/5 is .40
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