Write the word phrase as an algebraic expression. Use x to represent the unknown number.The product of 4 and a number
A. 4 - x
B. 
C. 4x
D. 4 + x
Answer: C
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Find the equation of the hyperbola satisfying the given conditions. The center is at the origin.Passes through (3, 2), focus (0, 2)
A. y2 - 
= 1
B. 
- y2 = 1
C. 
- x2 = 1
D. x2 - 
= 1
Solve the problem.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is 
for a resistor whose resistance is 
and when the current flowing through the resistor is 
find the voltage across a resistor whose resistance is 
and when
the current flowing through the resistor is 
A. 16 volts
B. 12 volts
C. 48 volts
D. 6 volts
Find the standard form of the equation of the hyperbola satisfying the given conditions.Center: (6, 3); Focus: (4, 3); Vertex: (5, 3)
A. (x - 3)2 - 
= 1
B. 
- (y - 6)2 = 1
C. 
- (y - 3)2 = 1
D. (x - 6)2 - 
= 1
Simplify the expression.(y3)6
A. 6y18 B. y18 C. y9 D. 6y3