Solve the problem.In a home economics class, students cut triangular pieces of fabric for a quilt. Each triangle had a base of 18 centimeters and an altitude of 15 centimeters. What was the area of each triangular piece of fabric?
A. 270 square centimeters
B. 540 square centimeters
C. 16.5 square centimeters
D. 135 square centimeters
Answer: D
Mathematics
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Find T, N, and B for the given space curve.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. T = 
i + 
j + 
k; N = 
i + 
j; B = 
i + 
j + 
k
B. T = 
i - 
j + 
k; N = 
i + 
j ; B = - 
i + 
j + 
k
C. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
D. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
Mathematics
Find an equation for the hyperbola described.center at (2, 3); focus at (-3, 3); vertex at (1, 3)
A. (x - 3)2 - 
= 1
B. 
- (y - 3)2 = 1
C. 
- (y - 2)2 = 1
D. (x - 2)2 - 
= 1
Mathematics
Subtract and simplify.
- 
A. 
B. 
C. 1
D. 2
Mathematics
Match the equation to the graph.(x + 2)2 = -6(y - 2)
A. 
B. 
C. 
D. 
Mathematics