Solve the problem. Round results to an appropriate number of significant digits.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 26 ft from the base of the tree, how tall is the tree?
A. 38 ft
B. 40 ft
C. 42 ft
D. 36 ft
Answer: D
Mathematics
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Find a1, r, an, n, or Sn for the geometric sequence, as instructed.a1 = 10, r = 
, an = 5; Find n.
A. 2 B. 4 C. 3 D. 1
Mathematics
Find the first term and the common difference of the arithmetic sequence described. Give a formula for the nth term of the sequence.3rd term is 19; 8th term is 59
A. a = 3; d = 8; an = 8n - 5 B. a = 16; d = 8; an = 8n + 11 C. a = 11; d = 8; an = 3n + 8 D. a = 3; d = 8; an = 8n + 3
Mathematics
Divide.80.404 ÷ 0.1
A. 824.04 B. 7990.4 C. 804.04 D. 8040.4
Mathematics
Solve the system of equations. x - y + 4z = -53x + z = -2 x + 4y + z = -14
A. ? B. {(-2, -3, 0)} C. {(0, -3, -2)} D. {(-2, 0, -3)}
Mathematics