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3 years ago

I need help with 1-4

Mathematics

1 answer:

worty [1.4K]3 years ago

6 0

1) the longest side is 5cm and the perimeter is 12cm
2) longest side is 12.04 or just 12
3) 241 miles apart
4) Yes it is

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After a 15% increase, a town has 115 people. What was the population before the increase?

Arte-miy333 [17]

Answer:

100 people

Step-by-step explanation:

Population Of People=115Percentagencrease=15%

The New Population corresponds to 115%

(That is 100+15)

We want to find the population that corresponds to 100% that is the original population.

Therefore Original Population;

 $\frac{100}{115}\times {115}{}$ 

 $100 \: people$ 

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3 years ago

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2 years ago

Use the compound interest formula to compute the total amount accumulated and the interest earned.

mezya [45]

A=3,500×(1+0.011÷12)^(12×4)
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3 years ago

An initial deposit of $7,000 earns 6.5% interest, compounded monthly. How

zavuch27 [327]

Answer:

$34,300

Step-by-step explanation:

First, we need to find how much interest is earned in one month : 7,000 * 6.5% = 455

455 is how much you gain monthly, multiply that by 12 to find the annual interest so 455 * 12 = 5,460

You then multiply that number by 5 to find the interest of the span of the 5 years

5,460 * 5 = 27,300

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2 years ago

X^2 -18x +81=0 factor it

nasty-shy [4]

Answer:

x=9

Step-by-step explanation:

81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.

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3 years ago