Which method should be used to solve the system? Explain your answer, including a description of the first step.5x2 + 6y2 =100x + 8y =-1
What will be an ideal response?
Substitution should be used, because using elimination would mean introducing an xy term into the second equation unnecessarily. The second equation should be solved for x.
Mathematics
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Express the trigonometric function in terms of the same function of a positive acute angle.sin 618°
A. sin 33° B. -sin 78° C. sin 78° D. -sin 33°
Mathematics
Decide whether or not the number is a zero of the polynomial.P(x) = -4x3 + x2 + 7x - 2; -3
A. No B. Yes
Mathematics
Divide, if possible. Write the answer in simplest form.
÷ 
A. 
B. 5
C. 
D. 
Mathematics
Simplify.
? 
A. 7x2
B. 7x
C. 7
D. 7
Mathematics