Find the present value of the future value.$9000, invested for 4 years at 4% compounded quarterly
A. $7691.39
B. $7675.39
C. $10,537.21
D. $10,553.21
Answer: B
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Perform the indicated operation and simplify. Write the answer in the form a + bi.
A. 
B. 
+ 
i
C. 
- 
i
D. 
- 
i
Solve the problem.A block sitting at rest on an inclined plane is held in place by a friction force, f, that is directed against the bottom surface of the block in a direction up the incline parallel to the plane surface, and by a normal force, N, that is directed against the block in a direction out from and perpendicular to the plane surface. It can be shown that src="https://sciemce.com/media/4/ppg__rre0509191659__f1q9g3.jpg" alt="" style="vertical-align: -4.0px;" /> For what angle does 
and 
where ? is the angle of inclination and mg is the weight of the block. Assume that mg is 5 pounds and plot f and N together on the same graph over 
appear to be an identity?
A. 0°;
Force
?°
B. 0° and 90°;
Force
?°
C. 45° ;
Force
?°
D. 90°;
Force
?°
The area of the triangular swimming pool shown in the illustration is doubled by adding a rectangular wading pool. Find the width of the pool (x).
(The area of a triangle = 
, and the area of a rectangle = lw).
?
?
?
Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
Determine the number of terms and identify the coefficient of each term of the expression.-9m - 3z
A. 2; -9 and 3 B. 2; 9 and 3 C. 2; 9 and -3 D. 2; -9 and -3