Find the indicated matrix product or state that the product is undefined.A = 
, B = 
BA
A. 
B. 
C. 
D. 
Answer: A
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In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer TV in a school of 600 students?
A. About 12 students B. About 72 students C. About 108 students D. About 120 students
Explain the mistake, then work the problem correctly.(4x3 - 2x2 + 5x - 1) - (8x3 - 7x2 - 2x + 4)= (4x3 - 2x2 + 5x - 1) + (-8x3 + 7x2 - 2x + 4)= -4x3 + 5x2 + 3x + 3
What will be an ideal response?
Solve the radical equation.
- 
= 3
A. {-2} B. {2} C. {3, 8} D. {2, 38}
Give the maximum number of zeros the polynomial function may have. Use Descarte's Rule of Signs to determine how many positive and how many negative zeros it may have.f(x) = x6 + 4x5 + 4x4 + 3x3 - x2 - 5x + 4
A. 6; 2 or 0 positive zeros; 4, 2, or 0 negative zeros B. 6; 3 or 1 positive zeros; 4, 2, or 0 negative zeros C. 6; 4, 2, or 0 positive zeros; 2, or 0 negative zeros D. 6; 2 or 0 positive zeros; 5, 3, or 1 negative zeros