9. The initial value of an investment is $12,000. If the investment earns an annual interest rate of 2.2%, what is its value in 10 years? O $14,917.30 $14,640.00 $14,627.93 $87,655.58

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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Please Solve ninth Question - I dont know whether the answer is right or wrong

7. The ratio of students to professionals in a conference is 2 : 3. If there are 60 participants altogether, how many of them are professionals?
20
24
36
40
8. JD rolls a 6-sided die and tosses a coin. What is the probability that he rolls a 4 and tosses a head?
3
8
1
12
9. The initial value of an investment is $12,000. If the investment earns an annual interest rate of 2.2%, what is its value in 10 years?
O $14,917.30
$14,640.00
O $14,627.93
$87,655.58
10. A child is flying a kite with a 30-ft string at an angle of elevation of 40°. Which of the following gives the altitude of the kite in feet?
O 30 sin 40°
30
sin 40°
30 tan 40°
O 30
tan 40°
1/31101|00
O O
Transcribed Image Text:7. The ratio of students to professionals in a conference is 2 : 3. If there are 60 participants altogether, how many of them are professionals? 20 24 36 40 8. JD rolls a 6-sided die and tosses a coin. What is the probability that he rolls a 4 and tosses a head? 3 8 1 12 9. The initial value of an investment is $12,000. If the investment earns an annual interest rate of 2.2%, what is its value in 10 years? O $14,917.30 $14,640.00 O $14,627.93 $87,655.58 10. A child is flying a kite with a 30-ft string at an angle of elevation of 40°. Which of the following gives the altitude of the kite in feet? O 30 sin 40° 30 sin 40° 30 tan 40° O 30 tan 40° 1/31101|00 O O
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