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Vlad1618 [11]
3 years ago
12

Find the sum of the first 7 terms of the following series, to the nearest integer.

Mathematics
1 answer:
Virty [35]3 years ago
5 0

Answer:

r = 2.5 \\ sum =  \frac{a( {r}^{n - 1} )}{r - 1}  \\  =  \frac{125( {2.5}^{7 - 1} )}{7 - 1}  \\  =  \frac{30517.6}{6}  \\  = 5086.3

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B C D are exponential functions

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3 years ago
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Thirteen unit cubes are taken from the tousand cube write a fraction and a decimal to represent how many unit cubes are left
Neko [114]

The number of unit cubes left after taken 13 unit cubes from the thousand unit cubes expressed as a fraction and decimal is; 987/1000 and 0.987 respectively.

<h3>What is the number of unit cubes left when thirteen unit cubes are taken away from a thousand expressed as a fraction and decimal?</h3>

It follows from the task content that the description goes thus; Thirteen unit cubes are taken from the thousand cube.

Hence, the number of unit cubes left is; 1000 - 13 = 987.

Consequently, when expressed as a fraction of the whole, we have; = 987/1000 and when expressed as a decimal, we have; 0.987.

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4 0
2 years ago
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Emmanuel is going on a trip with his family! His family leaves his apartment at 9:25 a.M. If it takes emmanuel 3 hours and 22 mi
Pavlova-9 [17]

Answer:

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6 0
3 years ago
The question is in the picture
spayn [35]

Answer:

x = 10

Step-by-step explanation:

Notice that in order to solve for the final solution of x, we must look at the second step.

We use the multiplicative property of equality and multiply both sides by 5. When we do so, the left side results in simply: \frac{1}{5} x*5=\frac{5}{5} x=x. Meanwhile, the right side results in: \frac{6}{3} *5=\frac{30}{3} =10

Thus, we have x = 10.

Hope this helps!

7 0
3 years ago
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