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choli [55]
3 years ago
12

There are 15 people in the chorus. Each year, the number of people in the chorus increases by 12%.

Mathematics
1 answer:
tia_tia [17]3 years ago
8 0
This has already been answered before but...
Part AChorus:Expontential growth = b*a^x b = 15a = 1.12              (a= r+1), r = 12%
Which gives a function of f(x) = 15*1.12^x 

BandLinear growth = ax+ba = 2b = 30
Which gives a function of g(x)=2x+30
Part B:f(9) = 15*1.12^9 = 41.59g(9) = 2*9+30 = 48
Part C:This is probably problem solving, where you're allowed to use calculators and other softwares.
Therefore you can use different softwares, and make f(x) = g(x).I did this, and got it to 10.95427141
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2 years ago
20 POINTS AND BRAINLIEST!
Advocard [28]

Answer:

<A =21

<B = 84

<c = 75

Step-by-step explanation:

<A =x

<B = 4x

<C =5x-30

The sum of A+B+C = 180

 x+ 4x + 5x-30 = 180

Combine like terms

10x -30 = 180

Add 30 to each side

10x-30+30 = 180+30

10x = 210

Divide by 10

10x/10 = 210/10

x= 21

Since x =21 we can find the value of the angles

Substituting x into the equations for angles A, B and C

<A =21

<B = 4x = 4*21 = 84

<C = 5x-30 = 5*21-30 = 105-30 = 75

7 0
2 years ago
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In ΔABC, BC = 4 centimeters, m∠B = m∠C, and m∠A = 20°. What is AC to two decimal places?
ipn [44]
M<A = <span>20°
m<B = m<C = 8</span><span>0°

</span>Law of Sines , in any triangle we have
a/sin A = b/sin B = c/sin c<span>

4/sin20 = AC/sin80 = AB/sin80

now we can solve AC

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AC = 4(0.98) / (0.34)
AC = 3.92 / 0.34
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answer

</span>C.11.52 centimeters<span>

</span>
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Answer:

the answer is no

Step-by-step explanation:

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Answer:

Step-by-step explanation:

25- guaranteed

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238+25= $263

1. Marques expects to earn $263 on 17 tables

2. He expects to make 25+14t per day.

5 0
2 years ago
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