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Unit 4B Review
By Patrick Silvey
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Last updated almost 3 years ago
37 questions
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Question 1
1.
Solve (round to the nearest hundredth, if necessary): 3
x+4
= 112.
Question 2
2.
Solve (round to the nearest hundredth, if necessary): 12
3x-1
= 740.
Question 3
3.
Solve (round to the nearest hundredth, if necessary): 5
2x
+ 7 = 22.
Question 4
4.
Solve (round to the nearest hundredth, if necessary): e
11x
= 355.
Question 5
5.
Solve (round to the nearest hundredth, if necessary):
Question 6
6.
Solve (round to the nearest hundredth, if necessary):
Question 7
7.
Solve (round to the nearest hundredth, if necessary):
Question 8
8.
Solve (round to the nearest hundredth, if necessary):
Question 9
9.
Solve (round to the nearest hundredth, if necessary):
Question 10
10.
Solve (round to the nearest hundredth, if necessary):
Question 11
11.
Solve (round to the nearest hundredth, if necessary):
Question 12
12.
Solve (round to the nearest hundredth, if necessary):
Question 13
13.
What is the extraneous solution to this equation?
Question 14
14.
What is the actual solution to this equation?
Question 15
15.
What is the extraneous solution to this equation?
Question 16
16.
What is the actual solution to this equation?
Question 17
17.
Write a function to model a $14000 investment at 1.5% interest, compounded annually.
Question 18
18.
What is the balance of a $14000 investment at 1.5% interest, compounded annually, after 10 years?
Question 19
19.
How many years until a $14000 investment at 1.5% interest, compounded annually, exceeds $20,000?
Question 20
20.
Write a function to model a $12000 investment at 3.2% interest, compounded annually.
Question 21
21.
What is the balance of a $12000 investment at 3.2% interest, compounded annually, after 10 years?
Question 22
22.
How many years until a $12000 investment at 3.2% interest, compounded annually, exceeds $20,000?
Question 23
23.
Write a function to model a $14000 investment at 1.5% interest, compounded continuously. (Use x as your variable.)
Question 24
24.
What is the balance of a $14000 investment at 1.5% interest, compounded continuously, after 10 years?
Question 25
25.
How many years until a $14000 investment at 1.5% interest, compounded continuously, exceeds $20,000?
Question 26
26.
Write a function to model a $12000 investment at 3.2% interest, compounded continuously. (Use x as your variable.)
Question 27
27.
What is the balance of a $12000 investment at 3.2% interest, compounded continuously, after 10 years?
Question 28
28.
How many years until a $12000 investment at 3.2% interest, compounded continuously, exceeds $20,000?
Question 29
29.
Write a decay equation that models the decay of Promethium-145, with a half-life of 17.5 years and an initial amount of 1200mg.
Question 30
30.
What is the decay constant for Promethium-145? Round to 6 decimal places.
Question 31
31.
How many years would it take for 1200 mg of Promethium-145 to decay to 50 mg?
Question 32
32.
Write a decay equation that models the decay of Actinium-227, with a half-life of 22 years and an initial amount of 800mg.
Question 33
33.
What is the decay constant for Actinium-227? Round to 6 decimal places.
Question 34
34.
How many years would it take for 800 mg of Actinium-227 to decay to 50 mg?
Question 35
35.
Write a decay equation that models the decay of Californium-251, with a half-life of 898 years and an initial amount of 610mg.
Question 36
36.
What is the decay constant for Californium-251? Round to 6 decimal places.
Question 37
37.
How many years would it take for 610 mg of Californium-251 to decay to 50 mg?
