Using the figure below, if ? = 20° and y = 16, determine the exact value of r.
A. 
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Use synthetic division to determine whether x - c is a factor of the given polynomial.3x3 - 22x2 + 47x - 28; x - 6
A. Yes B. No
Mathematics
Solve the equation and check.
A. 
B. 
C. 
D. 
E. 
Mathematics
Factor the expression by removing the common factor with the smaller exponent.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
A landscape designer is working on the plans for a residential yard. Her clients want a privacy hedge planted on three sides of the rectangular backyard. (The side bordering the house will not be planted.) The plant selected for the hedge spans 5 when mature. If the backyard is 50 feet deep and 80 feet long and there is to be a plant at the corners of the hedge, how many hedge plants are required? (See sketch.)
Mathematics