Evaluate the logarithm. log7
A. -49
B. 3
C. -3
D. 49
Answer: C
Mathematics
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Solve the given applied problems involving variation.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 175 seconds are required to make a 
enlargement, find the time required for a 
enlargement.
A. 378 s B. 486 s C. 432 s D. 324 s
Mathematics
Provide an appropriate response.What values of a and b minimize the value of 
dx?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Provide an appropriate response.Explain in your own words why 
? a when a is negative.
What will be an ideal response?
Mathematics
Round the following to the nearest ten, nearest hundred, and nearest thousand.70,255
A.
| Ten | 70,250 |
| Hundred | 70,300 |
| Thousand | 70,270 |
B.
| Ten | 70,260 |
| Hundred | 70,300 |
| Thousand | 70,000 |
C.
| Ten | 70,260 |
| Hundred | 70,250 |
| Thousand | 71,000 |
D.
| Ten | 70,250 |
| Hundred | 70,200 |
| Thousand | 71,000 |
Mathematics