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hram777 [196]
3 years ago
7

In ΔABC, where ∠C is a right angle, cos A=√21/5. What is sin B?

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0

Answer:

A

Step-by-step explanation:

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The population of a small town is 40,740. It's population falls by 8% per year. How many years later will the population be 14,5
Mashutka [201]

Answer:

0.9101523758 ≈ 1 year

Step-by-step explanation:

The population of a small town is 40,740.

Its population falls by 8% per year.

Given: Compound interest Amount (A) = P( 1 + \frac{r}{n})^{nt}

14,550 = 40,740(1 + \frac{-8}{100 * 1})^{t*1}

14,550 = (40,740 - 3259.2)^{t}

14,550 = (37,480.8)^{t}

t * log 37,480.8 = log 14,550

t = \frac{ log 14,550}{log 37,480.8} = 0.9101523758 ≈ 1 year

6 0
3 years ago
Timothy is re-arranging his marble collection.he has five identical blue marbles,five identical green marbles and three identica
romanna [79]
Based on the scenario, the case must be filled like this :

blue/green/black  x   blue/ green/black    x blue/green/black   x  random   x random

Different ways he can arrange it : 

3 x 5!/(2!x2!)       +            3x    <span>5!/3!
</span>
90           +        60

= 150 ways

hope this helps







7 0
3 years ago
Read 2 more answers
Round 12.5829 to the nearest hundredth
natima [27]
12.58 i’m pretty sure
3 0
2 years ago
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when deciding how much money to set aside for a new car, a good rule of thumb to follow is to budget about one-fifth of your mon
joja [24]
3750(0.20)=$750
1/5 as a percent is 20% and as a fraction it is 0.20
5 0
2 years ago
Jackie made $28 babysitting last week. her brother joe made only 86% as much as she did. how much did joe make?
strojnjashka [21]
Her brother joe made $52.08. First you need to make the percent into a decimal, like this 86% => .86. Then multiply .86 to $28. After that add what you got to $28.
7 0
2 years ago
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