Solve the number problem by finding the value of the unknown number.If three times a number is decreased by 4, the result is 14.
A. 6
B. 5
C. 7
D. 9
Answer: A
Mathematics
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Simplify.-?-22?
A. 44 B. 22 C. 0 D. -22
Mathematics
Solve.In a dc circuit the power P dissipated in the circuit is given by the equation P = R?I2 where R is the circuit resistance in ohms and I is the current in amperes. What current will produce 2420 watts of power in a 20-ohm resistor?
A. 40 amps B. 32 amps C. 15 amps D. 11 amps
Mathematics
Write the set in set builder notation.The odd natural numbers less than 53.
A. {x ? N?x is odd and x ? 51} B. {x ? N?x < 53} C. {x ? N?x < 52} D. {x ? N?x is odd and x ? 53}
Mathematics
Find a unit vector at which the quadratic form xTAx is maximized, subject to the constraint xTx = 1.A = 
A. 
B. 
C. 
D. 
Mathematics