Which graph represents an exponential function?
2 answers:
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Answer:
The time it takes them to grade the essays if they work together is 1.857 hours
Step-by-step explanation:
- Let t1 is time taken by Professor J = 3 hours
- Let t2 is time taken by the assistant = 5 hours
- Let tb is the time taken by both
The formula for “Work” Problems that involve two persons is
<=>
<=>
<=> tb =
The time it takes them to grade the essays if they work together is 1.857 hours
Answer:
Chan is not correct.
The correct equivalent quarterly interest rate is 1.3108% per quarter.
Step-by-step explanation:
Given that Chan deposited money into his retirement account.
The interest was 7% compounded annually.
Let P be the amount invested and F the final amount got after 1 year
If compounded annually,
F = P(1+0.07) = 1.07P
If compounded quarterly, no of quarters = 4
F =
= 1.3108P
Hence equivalent interest rate = 1.3108% and not 2%