Matrix A is given. Find appropriate identity matrices Im and In such that ImA = A and AIn = A.A = 
A. Im = In = 
B. Im = 
, In = 
C. Im = 
, In = 
D. Im = In = 
Answer: A
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Use the rules of exponents to simplify. Write the answer with positive exponents. Assume that all variables represent positive values.
A. y1/2 B. y5/3 C. y-1/2 D. y
Maximize 
subject to the given constraints. Find the maximum value of P and the point at which that value occurs.
?
?
Separate the maximum value and the point with a comma. Enter the point using coordinate notation: (x, y).
What will be an ideal response?
Solve.A ranger in fire tower A spots a fire at a direction of 40°. A ranger in fire tower B, which is 28 miles directly east of tower A, spots the same fire at a direction of 330°. How far from tower A is the fire? Round to the nearest mile.
A. 22 mi B. 24 mi C. 33 mi D. 26 mi
Find the product. Assume all variables have non-negative values.(
+ 
)(
- 
)
A. 5 - z
B. 5 - 2
C. 5 - 2
D. 5z