Find the determinant of the given matrix.
A. 465
B. -41
C. -55
D. 41
Answer: D
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Find the exact value of the logarithm using logb bx = x.log 1000
A. 3 B. 4 C. 2 D. -3
Solve the joint variation.If f varies jointly as h and the square of q, and 
when 
and 
, find f when 
and 
.
A. 6 B. 32 C. 96 D. 24
Answer the question or solve the problem.If a ? b, is it always true that a - 7 ? b - 7? Explain.
What will be an ideal response?
Solve the problem.The pH of a solution is defined as pH = -log[H+], where [H+] is the concentration of hydrogen ions in the solution. The pH of pure water is 7, while the pH of lemon juice is about 2. How much greater is the concentration of hydrogen ions in lemon juice than in pure water?
A. 5 times greater B. 10 times greater C. 100,000 times greater D. 10,000 times greater