Rewrite using numbers and an inequality symbol.Eleven is less than eighteen.
A. 11 < 18
B. 0 < 18
C. 11 > 18
D. 18 < 11
Answer: A
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, m
, and m
= 73°, find x.
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Solve the problem.The power dissipated in an electric circuit is given by the expression 
where R is the resistance of the circuit and I is the current through the circuit. For a sinusoidal alternating current, the current might be represented by the relation 
where A is the amplitude, f is the frequency, and t is time. Write an expression for P involving the sine function, and use a fundamental identity to write P in terms of the cosine function.
A. P = RA sin2(2?ft) ; P = RA - RA cos2(2?ft) B. P = RA2 sin2(2?ft) ; P = RA2 - RA2 cos2(2?ft) C. P = RA2 sin2(2?ft) ; P = - RA2 cos2(2?ft) D. P = RA sin2(2?ft) ; P = RA - cos2(2?ft)
Use the given conditions to write an equation for the line in slope-intercept form.Passing through (3, 3) and perpendicular to the line whose equation is y = 2x + 4.
A. y = - 2x - 9
B. y = - 
x + 
C. y = 
x - 
D. y = - 
x - 
Find the exact value of the expression.cos 10° cos 50° - sin 10° sin 50°
A. 
B. 
C. 
D. 