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Remaining Time: 2 hours, 46 minutes, 03 seconds.
Question Completion Status:
Solve the problem.
The function f(x) = 500(0.5) /90 models the amount in pounds of a particular radioactive
material stored in a concrete vault, where x is the number of years since the material was put
into the vault. Find the amount of radioactive material in the vault after 100 years. Round to
the nearest whole number.
278 pounds
225 pounds
231 pounds
268 pounds
QUESTION 2
4 points
Save Answer
Solve the problem.
The rabbit population in a forest area grows at the rate of 8% monthly. If there are 230
rabbits in September, find how many rabbits (rounded to the nearest whole number) should
be expected by next September. Use y = 230(2.7) 0.08.
596
597
584
610
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Remaining Time: 2 hours, 46 minutes, 03 seconds.
Question Completion Status:
Solve the problem.
The function f(x) = 500(0.5) /90 models the amount in pounds of a particular radioactive
material stored in a concrete vault, where x is the number of years since the material was put
into the vault. Find the amount of radioactive material in the vault after 100 years. Round to
the nearest whole number.
278 pounds
225 pounds
231 pounds
268 pounds
QUESTION 2
4 points
Save Answer
Solve the problem.
The rabbit population in a forest area grows at the rate of 8% monthly. If there are 230
rabbits in September, find how many rabbits (rounded to the nearest whole number) should
be expected by next September. Use y = 230(2.7) 0.08.
596
597
584
610
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Remaining Time: 2 hours, 29 minutes, 47 seconds.
Question Completion Status:
NITRO
DOVORSVI
Use properties of logarithms to expand the logarithmic expression as much as
possible. Where possible, evaluate logarithmic expressions without using a calculator.
log
х
10,000
log x – 4
10,000x
log x + 4
-40%
QUESTION 19
4 points
Save Answer
Use properties of logarithms to expand the logarithmic expression as much as
possible. Where possible, evaluate logarithmic expressions without using a calculator.
loga
3
Vx+5
(x-2)2
loga x4 + loga (x + 5) – loga (x – 2)2
1
4 loga x + z loga (x + 5) – 2 loga (x – 2)
loga
XA + loga (x + 5)1/3 – loga (x – 2)2
4 loga X-3 loga (x + 5) – 2 loga (x – 2)
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* Question Completion Status:
log313 – log37
log37 – log313
log37 + log313
QUESTION 21
4 points
Use properties of logarithms to expand the logarithmic expression as much as
possible. Where possible, evaluate logarithmic expressions without using a calculator.
3×3- –
log
4(x + 4)2
log 3 + 3log x + Ilog (4 – x) – log 4 – 2log (x + 4)
Llog – 4
log 3 + log x3 + log (4 – x)1/4 – log 4 – log (x + 4)2
log (3×344 – x) – log (4(x + 472)
log 3 + 3log x + ¿log (4 – x) – log 4 + 2log (x + 4)
x
1
Anoints
Remaining Time: 2 hours, 16 minutes, 09 seconds.
Question Completion Status:
QUESTION 17
4 points
Use properties of logarithms to expand the logarithmic expression as much as
possible. Where possible, evaluate logarithmic expressions without using a calculator.
log (10,000x)
40 + log x
4log x
4x
4 + log x
QUESTION 18
4 points
Use properties of logarithms to expand the logarithmic expression as much as
possible. Where possible, evaluate logarithmic expressions without using a calculator.
log
х
10,000
log x – 4
10,000x
log x + 4
-40x