Which method should be used to solve the system? Explain your answer, including a description of the first step. x2 - 3y2 = 497x2 - 7y2 = 9
What will be an ideal response?
Either method may be used. Elimination may be used since the equations have the same types of terms (x2, y2, constant). If elimination is used, then the first equation should be multiplied by 7 or -7. Substitution may be used efficiently, since a coefficient of the first equation is 1. If substitution is used, then the first equation should be solved for x2.
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Solve the problem.If 5 newborn babies are randomly selected, how many different gender sequences are possible?
A. 120 B. 32 C. 25 D. 10
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.
A. {(1.3, 1.4, 0.4)} B. {(2.6, 2.9, 0.8)} C. {(5.3, 5.7, 1.6)} D. {(10.6, 11.4, 3.1)}
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = (x + 4)2 
A. 
B. 
C. 
D. 
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
What temperature was recorded at 2 p.m.?
A. 79 ° F B. 76 ° F C. 78 ° F D. 80 ° F