Provide an appropriate response.Suppose that A is an m × n matrix and B is a p × q matrix. Under what conditions will the sum A + B exist?
A. If m = p and n = q
B. If n = p
C. It is not possible for the sum to exist.
D. The sum will always exist.
Answer: A
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Simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive numbers.
2
A. 
B. 
C. 
D. 
VR 2 = 8 V, VR1 = 9 V, and VR4 = 24 V. What is VR3 ?
a. 17 V
b. 16 V
c. 15 V
d. 7 V
e. 1 V
For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
(-7, -7)
A. (-7, 225°)
B. (7
, 315°)
C. (-14, 315°)
D. (7
, 225°)
Refer to triangle ABC. If 
cm, 
cm, and 
align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_9f57c512c53047359ece918a9" /> cm, find the largest angle.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 
B. ?
C. ?
D. ?
E. ?