Write a system of equations associated with the augmented matrix. Do not try to solve.
= 
A. 2x + y = -3
x + 2y = 2
-5x - 5y = 2
B. 2x + y + z = -3
x - 5y = 2
C. 2x = -3
x + y = 2
-5x - 5y = 2
Answer: C
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The pair of figures is similar. Find the missing side n. Round to the nearest tenth when necessary.
A. n = 0.8 yd B. n = 10.7 yd C. n = 6 yd D. n = 1.5 yd
Solve the system of equations.8x - 2y - 4z = 45x + 2y - 8z = -824x - 6y - 12z = -1
A. ? B. {(4, -8, -1)} C. {(3, 3, -1)} D. {(x,y,z) | 8x - 2y - 4z = 4}
Express the radical in simplified form.
A. 2 + 
B. 2
C. Not a real number
D. 2
Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. How many people were ill after 3 weeks?
A. 57,400 people B. 56,021 people C. 2548 people D. 120 people