Provide an appropriate response.Use a calculator to evaluate 392.
A. 1,521
B. 981
C. 78
D. 381
Answer: A
Mathematics
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 3 and x = 7 using an upper sum with four rectangles of equal width.
A. 86 B. 117 C. 126 D. 105
Mathematics
Write the expression in lowest terms.
A. -a + r B. a + r C. -a - r D. -1
Mathematics
Use the right triangle shown below and find the missing length. Give an exact answer and a decimal approximation rounded to two decimal places. 
b = 36, c = 39
A. a = 15, -15 B. a = 45 C. a = 225 D. a = 15
Mathematics
Solve the equation.5(2x - 2) = 9(x + 4)
A. {46} B. {-26} C. {31} D. {-46}
Mathematics