Answer:
D. log(9)
Step-by-step explanation:

Remember: 

Remember: 

Simplify...

Hope this helps! If you need steps for simplifying, just ask! :]
<span>In this problem the formula for average credit card debt is D=393t+5680 where t is years after 1995. To find the total average credit card debt in the year 2027, we must first find the difference in years between 2027 and 1995 to get our t value. To do this subtract 1995 from 2027: t= 2027 - 1995 = 32 years. Next, we plug in 32 for t into the equation and solve for D: D = (393)*(32) + 5680 = $18,256.</span>
The total mass for proton is -7.3 and the mass of the electron is 63.1. I'm sorry, I don't get the second part of the question.
There are 8 pencils and 16 erasers.
Step-by-step explanation:
Given,
Ratio of pencils to eraser = 1:2
Total number of pencils and erasers = 24
Let,
x be the original number.
Therefore,
Number of pencils = x
Number of erasers = 2x
Thus,
x+2x = 24

Dividing both sides by 3

Number of pencils = 8
Number of erasers = 2(8) = 16
There are 8 pencils and 16 erasers.
Keywords: ratio, division
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<h2>
Answer with explanation:</h2>
Given : The critical path for the project has an expected duration of 112 days, and a standard deviation of 5 days.
i.e. 
We assume that this a normal distribution.
Let x be the random variable that represents the time duration to complete the project.
z-score : 
For x= 115

P-value : 
Thus, the probability of finishing on time if the due date is 115 days is 0.726.
Also, for x= 120

P-value : 

Hence, the probability that they will have to pay the penalty is 0.055 .