Solve the problem.A rectangular enclosure must have an area of at least 4200 yd2. If 260 yd of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
A. 65 ? w ? 70 (yards)
B. 60 ? w ? 65 (yards)
C. 0 ? w ? 60 (yards)
D. 60 ? w ? 70 (yards)
Answer: B
Mathematics
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Solve the problem.A saleswoman packed 3 jackets and 5 skirts. With one jacket, she could wear all 5 skirts. With another jacket, she could wear 4 skirts. With the third jacket, she could wear only 3 skirts. How many different combinations did she have?
A. 23 B. 12 C. 60 D. 11
Mathematics
Find an equation of the line.
A. x = - 
B. y = - 
x
C. y = - 
D. x = 
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics
Convert the equation to the standard form for a hyperbola by completing the square.x2 - y2 + 4x - 4y - 1 = 0
A. (y + 2) 2 - (x + 2) 2 = 1
B. 
- 
= 1
C. (x + 2) 2 - (y + 2) 2 = 1
D. (x + 2) 2 + (y + 2) 2 = 1
Mathematics