Estimate a sum by rounding each addend to the specified place. Estimate a difference by rounding the minuend and subtrahend to the specified place value. 4.06 + 0.013 + 0.197 to the nearest whole number
A. 4
B. 4.3
C. 5
D. 4.27
Answer: A
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Find k such that the function is a probability density function over the given interval.f(x) = 
, 1 ? x ? 5
A. 1 - ln 5
B. ln 5
C. 
D. 
Factor completely. If the polynomial cannot be factored, say it is prime.8y2 + 36y - 20
A. 4(2y + 1)(y - 5) B. 4(2y - 1)(y + 5) C. prime D. (8y - 4)(y + 5)
Solve the problem.The number of traffic accidents has been decreasing in a certain county each year. The data is shown in the table for several recent years. The set of data can be approximated with a linear equation.
Find an equation of the line.
A. y = -75x + 631 B. y = -75x + 621 C. y = 75x + 631 D. y = -85x + 631
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.3y = 21 - 4x2x = 27 - 3y
A. {(3, -11)}
B. {(-3, 11)}
C. {
4x + 3y = 21 }
D. ?