Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.42 ? 49
A. 418
B. 1618
C. 411
D. 1611
Answer: C
Mathematics
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Use the Trapezoidal Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Mathematics
Determine the number that will complete the square to solve the given equation after the constant term has been written on the right side. Do not actually solve.4x2 + x + 5 = 0
A. 64
B. 
C. 
D. 
Mathematics
Answer the question(s) based on the following situation: For a population of 2000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 590 and standard deviation ? = 70.Approximately how many students scored less than 543 points?
A. 500 B. 750 C. 543 D. 637 E. none of these
Mathematics
Solve the equation.x2/3 + 4x1/3 - 5 = 0
A. {-125, 1} B. {-1, 5} C. {-1, 125} D. {-5, 1}
Mathematics