Solve. A rectangle has a length of x + 3, a width of x - 3, and an area of 40. Find the dimensions of the rectangle.
A. 8 by 5
B. 20 by 2
C. 12 by 6
D. 10 by 4
Answer: D
Mathematics
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Solve.If the population of a certain country doubles in 9.37 years, find the growth rate k. Assume that the population increases exponentially.
A. 5.7% B. 3.1% C. 8.2% D. 7.4%
Mathematics
Simplify the expression. Write the result using positive exponents only.-3z-4
A. 
B. 
C. - 
D. - 
Mathematics
Provide an appropriate response.Multiply and simplify: (t + 3)(t - 3)
What will be an ideal response?
Mathematics
Identify the equation as either an identity or not.tan ? + cot ? = 2 csc 2?
A. Not an identity B. Identity
Mathematics