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 - 7x
A. 0; 
2
B. 
; 
2
C. 
; 
2
D. 49; 
2
Answer: B
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Divide.(-495) ÷ 99
A. - 
B. -5
C. 5
D. -15
Fill in the blank using the word product, sum, quotient, or difference.The formula sin ? + sin ? = 2 sin 
cos 
can be used to change a 
of two sines into the 
of a sine and a cosine expression.
A. difference, product B. sum, product C. sum, quotient D. difference, quotient
Solve the problem.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 50 mph with a surface area of 32 ft2 experiences a drag of 224 N (Newtons), how fast must a car with 47 ft2 of surface area travel in order to experience a drag force of 348.74 N?
A. 50 mph B. 58 mph C. 55 mph D. 53 mph
Graph the system of inequalities.x2 + y2 ? 49x2 + y2 ? 16
A. no solution
B. 
C. 
D. 