Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 + 3x
A. 
; 
2
B. 0; 
2
C. 0; 
2
D. 
; 
2
Answer: D
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Provide an appropriate response.Divide and reduce answer to lowest terms converting improper fractions to whole or mixed numbers: 6 ÷ 3
A. 
B. 
C. 20
D. 
Write the complex number in rectangular form.-5(cos 120° + i sin 120°)
A. - 
+ 
i
B. - 
+ 
i
C. 
+ 
i
D. 
+ 
i
Solve the absolute value equation.
= 
A. x = 10 B. x = 16, 0 C. no solution D. x = 16, 12
Solve the problem.Suppose f(x) = 33.4 + 1.3log (x + 1) models salinity of ocean water to depths of 
at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the salinity (to the nearest hundredth) when the depth is 40 meters.
A. 52.57 grams of salt per kilogram of seawater B. 31.30 grams of salt per kilogram of seawater C. 55.17 grams of salt per kilogram of seawater D. 35.50 grams of salt per kilogram of seawater