Subtract. Write a mixed numeral for the answer.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the total area of the region between the curve and the x-axis.y = -x2 + 9; 0 ? x ? 5
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Use the formula L = 10 ? log 
, where the loudness of a sound in decibels is determined by I, the number of watts per square meter produced by the soundwave, and 
A certain noise produces 6.35 × 10-4 W/m2 of power. What is the decibel level of this noise?
A. 203 dB B. 78 dB C. 88 dB D. 9 dB
Mathematics
Simplify.
A. 6z4
B. 5z4
C. 6z4
D. 5z4
Mathematics
Establish the identity.(sec v + tan v)2 = 
What will be an ideal response?
Mathematics