Provide an appropriate response.Evaluate: log7
A. 7
B. -2
C. -7
D. 2
Answer: B
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Solve the problem.The resistance R produced by wiring resistors of R1, R2, and R3 ohms in parallel can be calculated from the formula 
If R1, R2, and R3 are measured to be 7 ohms, 10 ohms, and 6 ohms respectively, and if these measurements are accurate to within 0.05 ohms, estimate the maximum possible error in computing R.
A. 0.017 B. 0.010 C. 0.014 D. 0.021
Find the average value of 
over the given region.
z10 over the cube in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Find the exact value by using a half-angle identity.tan 165°
A. 2 - 
B. -2 + 
C. -2 - 
D. 2 + 
Solve the problem by estimating.Don traveled for 4 weeks in Africa last year and spent $2421 while he was there. Estimate the average amount he spent each day. Round the number of days to the to the nearest ten and the amount of money spent to the nearest hundred.
A. $800 B. $80 C. $700 D. $70