Determine if the given ordered pair is a solution of the system of equations. HINT: There is no need to graph.(-1, -3)4x + y = -13x + 4y = 9
A. Yes
B. No
Answer: B
Mathematics
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The number of bacteria present at a given time under certain conditions is given by the equation Q = 4,000e 0.01t, where t is expressed in minutes. How many bacteria are present at the end of 45 minutes?Please round the answers to the nearest whole.
A. Q = 6,344 bacteria B. Q = 6,273 bacteria C. Q = 6,287 bacteria D. Q = 6,298 bacteria E. Q = 6,282 bacteria
Mathematics
Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m
Mathematics
Solve the problem.Evaluate 
by expanding down the second column. Show all your work.A = 
What will be an ideal response?
Mathematics
Use the addition property of equality to solve the equation.-15y = -16y - 1
A. 1 B. 14 C. 0 D. -1
Mathematics