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Zina [86]
3 years ago
13

Find the sum of the following series. Round to the nearest hundredth if necessary.

Mathematics
1 answer:
e-lub [12.9K]3 years ago
8 0

Answer:

  11,184,808

Step-by-step explanation:

The n-th term of a geometric series is ...

  an = a1·r^(n-1)

To fill in the formula, we need a1·r^n, so need to multiply the last term shown by r.

The value of r is 32/8 = 4, and the other terms of interest are a1 = 8, a1·r^(n-1) = 8388608. So, the sum is ...

  S_n=\dfrac{ra_1r^{n-1}-a_1}{r-1}=\dfrac{4\cdot 8,388,608-8}{4-1}=11,184,808

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A chess club with 80 members is electing a new president. Hans received 32 votes. What percentage of the members voted for Hans?
Lerok [7]

Answer: 40%

Step-by-step explanation: To find what percentage of members voted for Hans simply multiply 32 by 100.

32 x 100 = 3200.

Then, divide that number, or 3200 by 80.

3200/80 = 40.

So, 40, or 40% of members voted for Hans.:)

7 0
2 years ago
Write an equation for the line parallel to y= -2x+1 that contains (-2,5)
grin007 [14]

Answer:

y = - 2x + 1

Step-by-step explanation:

Parallels line have the same slope, when an equation is in the form y= mx + b, m is the slope. In this problem slope = - 2

Now with the slope what is missing is the y-intercept, the problem says that the line contains the point (-2, 5), replacing that point in the equation you can solve it to find the y-intercept

y = mx + b

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5 = 4 + b

1 + b

y = - 2x +1

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2 years ago
17.9<br> find the two square roots of the number
allochka39001 [22]

Answer: 27.9 let me know if you need a another answer I hope this helps!

6 0
2 years ago
Order these numbers from least to greatest.<br><br> 8.88, 8.8, 7.3962, 8.808
Wewaii [24]
7.3962, 8.8, 8.808, 8.88
8 0
2 years ago
Read 2 more answers
1. What is the growth/ decay rate for this exponential function?
Firdavs [7]

Answer:

1. The growth rate is 2

2. The sample is losing half its mass, so the decay factor is 1/2 or 0.5

Step-by-step explanation:

The growth and decay factor in an exponential function is the number that is being multiplied to the power of x

  • It is a growth rate when that number is greater than 1
  • It is a decay rate when the number is less than 1
  • If it's 1 then it's not growing or decaying
  • If it's 0 you will have an answer of 0
8 0
2 years ago
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