Determine the discriminant and then use that value to determine the most efficient way of solving the quadratic equation. DO NOT SOLVE THE EQUATION.t = t2 + 9t - 4
A. 80; factoring
B. 80; quadratic formula
C. 48; quadratic formula
D. -80; no real solution
Answer: B
You might also like to view...
Solve the problem using determinants.Barges from ports X and Y went to cities A and B. X sent 28 barges and Y sent 8. City A received 20 barges and B received 16. Shipping costs $220 from X to A, $300 from X to B, $400 from Y to A, and $180 from Y to B. $8240 was spent. How many barges went where?
A. 20 from X to A; 8 from X to B; 0 from Y to A; 8 from Y to B B. 18 from X to A; 10 from X to B; 2 from Y to A; 6 from Y to B C. 16 from X to A; 16 from X to B; 4 from Y to A; 4 from Y to B D. 14 from X to A; 14 from X to B; 6 from Y to A; 2 from Y to B
Write the expression as the sum or difference of logarithms.logb 
A. logb m7 + logb p4 + logb n9 B. m7p4 - n9 C. 7logb m + 4logb p + 9logb n D. 7logb m + 4logb p - 9logb n
Refer to the table to answer the question.
Which category and year shows the smallest absolute change?
A. Training '98-'99 B. Catalog, '98-'99 C. Sales, '99-'00 D. Catalog '99-'00
Write the system of equations that corresponds to the augmented matrix.
A. x = 6 y = -4 z = -6 B. x = 0 y = 0 z = 0 C. x = 12 y = -8 z = -12 D. x = -6 y = 4 z = 4