Solve.A sign board has an area of 192 m2. The length of the diagonal is 20 m. What are the dimensions of the sign?
A. 12 m by 16 m
B. 14m by 16 m
C. 13 m by 15 m
D. 12 m by 19 m
Answer: A
Mathematics
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Use the imaginary unit to write the expression.
A. 2
B. -2i
C. 2i
D. -2
Mathematics
Graph the curve whose parametric representation is given. x = 3t, y = t + 3; -2 ? t ? 3 
A. 
B. 
C. 
D. 
Mathematics
A series circuit with R, XC, and XL is in resonance. If R = 60 ê, XC = 300 ê, and XL = 300 ê, what is the value of Z?
a. 220 ê b. 330 ê c. 660 ê d. 60 ê e. 360 ê
Mathematics
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 2, y = -3, z = -4, w = -2; (2, -3, -4, -2)
B. x = -2, y = 3, z = 4, w = -2; (-2, 3, 4, -2)
C. x = -2, y = -3, z = 5, w = 
; 
D. x = 
, y = - 
, z = - 
, w = - 
; 
Mathematics