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Annette [7]
3 years ago
13

Four lab rats stage a daring escape in broad daylight, eventually establishing a colony behind the laboratory's parking garage.

After one month, the population of the colony has risen to eight rats. After two months, the population is sixteen; after three months, thirty-two, and so on. If the pattern continues, how many months will it take for the colony population to reach 1,024 rats?
Mathematics
1 answer:
9966 [12]3 years ago
3 0

Answer: 9 months

Step-by-step explanation:

It's a pattern of multiplying by 2.

4 x 2 = 8

8 x 2 = 16

16 x 2 = 32

32 x 2 = 64

64 x 2 = 128

128 x 2 = 256

256 x 2 = 512

512 x 2 = 1,024

Have a good day! <3

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Rachel invested $15,000 in a nine-year CD giving 8.5% interest, but needed to withdraw $4,000 after two years. If the CD's penal
drek231 [11]
Given:
Principal = 15,000
interest = 8.5%
term = 9 years

I = 15,000 * 8.5% * 9 years = 11,475
total amount after 9 years = 15,000 + 11,475 = 26, 475

Preterm after 2 years. wdl of 4,000. penalty is 6 months interest of 4,000

I = 4,000 * 8.5% * 6/12 = 170  amount of penalty
I = 15,000 * 8.5% * 2 years = 2,550 interest earned for 2 years

15,000 + 2,550 = 17,550
17,550 - 4,000 - 170 = 13,380 amount to be invested for another 7 years

I = 13,380 * 8.5% * 7 years = 7,961.10
total amount after 9 years with pretermination
 13,380 + 7,961.10 = 21,341.10
5 0
4 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
Rama09 [41]

Answer:

70, 130

Step-by-step explanation:

Just took the Mastery test on PLATO and this answer was correct.

6 0
3 years ago
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adelina 88 [10]
A) Law of Detachment...
3 0
4 years ago
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Leviafan [203]
√(x + 9) - 4 = 1
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6 0
4 years ago
Based on historical data, your manager believes that 43% of the company's orders come from first-time customers. A random sample
tatyana61 [14]

Answer:

Following are the solution to the question:

Step-by-step explanation:

p = 0.43\\\\n = 243\\\\\sigma =\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.43 (1 -0.43)}{243}}=0.0013

z-score for \hat{p}=0.2 will be:

z score for will be:

z=\frac{\hat{p}-p}{\sigma}=\frac{0.39 - 0.43}{0.0013}=-30.76

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7 0
3 years ago
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