Which method should be used to solve the system? Explain your answer, including a description of the first step.2x2 + y2 =1-7x2 + 5y2 =16
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 5 or -5. Substitution may be used efficiently, since a coefficient of the first equation has an absolute value of 1. If substitution is used, then the first equation should be solved for y2.
You might also like to view...
Factor by removing the common binomial factor.j(k - 3) - 4(k - 3)
A. (j + 4)(k - 3) B. (j - 4)(k - 3) C. (j - 4)(k + 3) D. -4j(k - 3)
Use the circle graph to solve the problem.There are 8000 students attending the local university. The students are asked which sport they most enjoy watching. The circle graph shows the percentage favoring each sport.
What percentage of students did not name Soccer or Volleyball as their favorite sport?
A. 40% B. 17% C. 23% D. 60%
Find the midpoint between the two points.(-8, -7) and (4, 2)
A. (-12, -9)
B. (-4, -5)
C. 
D. 
Add.11,238,9748,020,267317,343
A. 22,240,049 B. 22,097,919 C. 24,966,136 D. 22,110,049