Solve the problem.An airplane is flying in the direction 76° west of north at 638 km/hr. Find the component form of the velocity of the airplane, assuming that the positive x-axis represents due east and the positive y-axis represents due north.
A. 
B. 
C. 
D. 
Answer: D
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Find the unknowns on the right side of the partial fraction decomposition.
= 
+ 
A. A = - 
, B = 
, C = - 
B. A = - 
, B = - 
, C = 
C. A = 
, B = 
, C = - 
D. A = 
, B = - 
, C = 
Decide whether the statement is true or false.(-8)7 is a positive number.
A. True B. False
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.Show that the formula 
obeys Condition II of the Principle of Mathematical Induction. That is, show that if the formula is true for some natural number k, it is also true for the next natural number 
. Then show that the formula is false for 
.
What will be an ideal response?
Solve the problem.A painter leans a ladder against one wall of a house. The ladder is 23 ft long. The base of the ladder is 20 ft from the house. How high is the wall? Round approximations to the nearest tenth. 
20 ft
A. 5.7 ft B. 64.5 ft C. 11.4 ft D. 21.5 ft