Solve the problem.When sitting atop a tree and looking down at his pal Joey, the angle of depression of Mack's line of sight is 
If Joey is known to be standing 40 feet from the base of the tree, how tall is the tree (to the nearest foot)?
A. 32 ft
B. 30 ft
C. 26 ft
D. 28 ft
Answer: C
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List the numbers that precede and follow the given number in the given base.32467
A. 52307; 54237 B. 32457; 32507 C. 1657; 1667 D. 32547; 32507
Evaluate the integral.
dx
A. 
sin-1 x - 
x sin-1 x - 
+ C
B. 
sin-1 x - 
sin-1 x + 
x
+ C
C. 
sin-1 x + 
sin-1 x - 
x
+ C
D. 
sin-1 x - 
cos-1 x + 
+ C
Write expanded notation.The number of steps in a stair-climbing race held in a Malaysian landmark building was 2827.
A. 2 thousands + 8 hundreds + 2 tens + 7 ones B. 2 thousands + 0 hundreds + 2 tens + 7 ones C. 8 thousands + 2 hundreds + 7 tens + 0 ones D. 2 thousands + 2 hundreds + 7 tens + 8 ones
Solve the inequality. Express your answer using interval notation.|7x - 7| - 6 < 0
A. (-?, 
) or (
, ?)
B. (
, 
)
C. (-?, 
)
D. no solution