Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.5 + 6 + 7 + 8 + . . . + 22
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.y = sin 
y = x2 - 2
A. x = 1.65, y = 0.74 or x = -1.20, y = -0.56 B. x = 1.65, y = 0.74 C. x = 1.65, y = 0.74 or x = -1.65, y = -0.74 D. x = -1.20, y = -0.56
Mathematics
Rewrite the following using radicals; then simplify if possible.(-32)1/5
A. 
= -2
B. 
= -8
C. -5
= -8
D. -
= -16
Mathematics
Find the exact value of the expression.cos
A. - 
B. 
C. 
D. 
Mathematics
Solve.Kayla owns 15 acres of land which she rents to a farmer for $3686 per acre per year. Her property taxes are $861 per acre per year. How much profit does she make on the land each year?
A. $56,151 B. $68,205 C. $54,429 D. $42,375
Mathematics