Solve the joint variation.If f varies jointly as h and the square of q, and 
when 
and 
, find f when 
and 
.
A. 60
B. 15
C. 12
D. 30
Answer: A
Mathematics
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Solve the problem.If the deflection (in cm) of a beam is calculated by the expression 
, where x is the distance (in m) from one end of the beam to the point where the force is applied, then what is the deflection if the force is applied in the center of a 9.24 m beam? (The 1000 and 20 are exact numbers.)
A. 1.68 cm B. -3.04 cm C. 1.677 cm D. -2.59 cm
Mathematics
Write the quotient in the form a + bi.
A. 
+ 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Mathematics
Simplify.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = -3, y = 3, z = 1; (-3, 3, 1) B. x = 1, y = -3, z = 3; (1, -3, 3) C. x = 1, y = 3, z = -3; (1, 3, -3) D. x = -3, y = 1, z = 3; (-3, 1, 3)
Mathematics