Graph the numbers on a number line.5
, 1, 3, - 1
A. 
B. 
C. 
D. 
Answer: B
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Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.24, 20 , 16, 12, . . .
A. an = 4n - 24; a20 = 56 B. an = 28 - 4n; a20 = -52 C. an = 24 - 4n; a20 = -56 D. an = 4n - 28; a20 = 52
Solve the problem.The cost y to produce x digital radios is given by the equation y = 74x + 3360 and the revenue y from the sale of these radios is given by the equation y = 102x. Find the break-even point to determine the cost/revenue when the company breaks even. Round to the nearest dollar, if necessary.
A. $1947 B. $12,240 C. $1233 D. $120
A certain species of turtle faces extinction because dealers collect truckloads of turtle eggs to be sold as aphrodisiacs. After severe conservation measures are implemented, it is hoped that the turtle population will grow according to the rule 
/>, where 
denotes the population at the end of year 
.
?
Find the rate of growth of the turtle population when 
.
?
__________ turtles/yr
?
Find the rate of growth of the turtle population when 
.
?
__________ turtles/yr
?
What will be the population 10 yr after the conservation measures are implemented?
?
__________ turtles
What will be an ideal response?
Solve the system by the elimination method or a combination of the elimination and substitution methods.x2 + 4xy + 2y2 = 1 x2 - 4xy - 2y2 = 1
A. {(1, 0), (-1, 0), (1, -2), (-1, 2)} B. {(1, 1), (-1, -1), (1, -2), (-1, 2)} C. {(1, 0), (1, 1)} D. {(1, -2), (-1, 2)}