Multiply: 3/5 ð 4/7
a. 7/12
b. 7/35
c. 20/21
d. 41/35
e. 12/35
e. 12/35
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Find the exact value of the expression.cos
A. 1
B. 
C. 
D. 
Solve the equation.
- x = 6
A. x = -7 B. x = -7, -3 C. x = -3 D. No solution
Determine how many of the first 5 statements in the sequence obtainable from the given statement are true.n2 + n + 1 is prime.
A. 5 B. 4 C. 2 D. 3
Solve.The power that a resistor must dissipate is jointly proportional to the square of the current flowing through the resistor and the resistance of the resistor. If a resistor needs to dissipate 
of power when 
of current is flowing through the resistor whose resistance is 
find the power that a resistor needs to dissipate when 
of
current are flowing through a resistor whose resistance is 
A. 63 watts
B. 147 watts
C. 126 watts
D. 21 watts