Approximate the area under the graph of f(x) over the specified interval by dividing the interval into the indicated number of subintervals and using the left endpoint of each subinterval.f(x) = 0.2x3 + 0.3x2 - 0.5x - 1; interval [2, 5]; 3 subintervals
A. 49.2
B. 50.0
C. 30.0
D. 21.0
Answer: D
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Use the following advice from most financial advisors to solve the problem. ? Spend no more than 28% of your gross monthly income for your mortgage payment. ? Spend no more than 36% of your gross monthly income for your total monthly debt.Round all calculations to the nearest dollar, if necessary.Suppose that your gross annual income is $60,000.(a) What is the maximum amount you should spend each month on a mortgage payment?(b) What is the maximum amount you should spend each month for total credit obligations?(c) If your monthly mortgage payment is 75% of the maximum amount you can afford, what is the maximum amount you should spend each month for all other debt?
A. (a) $1400; (b) $1800; (c) $1050 B. (a) $16,800; (b) $21,600; (c) $9000 C. (a) $1400; (b) $1800; (c) $750 D. (a) $1400; (b) $1800; (c) $50
The table shown was generated by a graphics calculator. The expression y1 represents f(x).
All the points lie on a straight line. What is the slope of the line?
A. - 
B. 
C. -2
D. 2
Find the prime factorization of the number.72
A. 2 ? 2 ? 2 ? 3 ? 5 B. 2 ? 2 ? 2 ? 3 C. 2 ? 2 ? 2 ? 3 ? 3 D. 2 ? 2 ? 2 ? 2 ? 3 ? 3
Use the discriminant to determine the number and type of solutions of the equation.x2 + 2x + 7 = 0
A. two complex but not real solutions B. two real solutions C. one real solution