Evaluate 
for the matrix 
.
A. ?40
B. ?-40
C. ?-400
D. ?400
E. ?80
Answer: D
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Provide an appropriate response.It can be shown that 
= 0 for c > 0. Find the smallest value of N such that 
for all 
if 
and 
style="vertical-align: -4.0px;" /> A. 28 B. 25 C. 31 D. 35
Decide whether the given statement is always true or not always true.A ? (B ? C)' = A ? (B' ? C')
A. Not always true B. Always true
Solve the problem.Hye-Ran, who is 1.60 m tall, wishes to find the height of a tree with a shadow 30.06 m long. She walks 
from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. How tall is the tree? Round to the nearest hundredth.
A. 1.60 m B. 5.72 m C. 2.75 m D. 2.22 m
Classify the triangle as acute, right, or obtuse and classify it as equilateral, isosceles, or scalene.
A. Obtuse, scalene B. Right, scalene C. Obtuse, equilateral D. Acute, scalene