Use a graphing calculator to find the solutions of the equation. Round solutions to the nearest hundredth.x2 + 9x - 31 = 0

A. 2.66, -11.66
B. 10.71, -19.71
C. 19.71, -10.71
D. 11.66, -2.66


Answer: A

Mathematics

You might also like to view...

The solution  for t of the equation is: ?

A.
B.
C.
D.

Mathematics

Determine the degree measure of the given angle.

A. 30° B. 120° C. 60° D. 150°

Mathematics

Solve.A baker can decorate the day's cookie supply four times as fast as his new assistant. If they decorate all the cookies working together in 24 minutes, how long would it take for each of them to decorate the cookies working individually?

A. baker: 120 min
assistant: 480 min
B. baker: 120 min
assistant: 30 min
C. baker: 7 min
assistant: 29 min
D. baker: 30 min
assistant: 120 min

Mathematics

Construct a probability model for the experiment.Spinner I has 4 sections of equal area, numbered 1, 2, 3, and 4. Spinner II has 3 sections of equal area, labeled Red, Yellow, and Green. Spinner III has 2 sections of equal area labeled A and B. Spin Spinner I, then Spinner II, then Spinner III. What is the probability of getting a 2, followed by Yellow or Green, followed by B?

What will be an ideal response?

Mathematics