Solve the problem.A ladder that is 15 feet long is 9 feet from the base of a wall. How far up the wall does the ladder reach?
A. 3
ft
B. 12 ft
C. 
ft
D. 144 ft
Answer: B
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 3i + 6j , v = i - j
A. 3; 3k B. 3; -3k C. 9; -9k D. 9; -k
Mathematics
Evaluate the trigonometric function at the quadrantal angle, or state that the expression is undefined.tan 
A. undefined B. 1 C. -1 D. 0
Mathematics
Divide.
A. 125,000 B. 12,500 C. 12,501 D. 1250
Mathematics
Provide an appropriate response.110 × 87 = 957087 × 110 = 9570This is an example of the 
.
A. commutative property of addition B. commutative property of multiplication C. associative property of addition D. associative property of multiplication
Mathematics