Provide an appropriate response.Use a calculator to find the tan 53°. Round to four significant digits.
Fill in the blank(s) with the appropriate word(s).
1.327
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 5ln
j + 
k
A. a(1) = 20i - 5j - 2k
B. a(1) = 20i + 
j + 2k
C. a(1) = 20i + 
j - 2k
D. a(1) = 20i + 5j + 2k
Mathematics
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 38°45'. If Joey is known to be standing 10 feet from the base of the tree, how tall is the tree (to the nearest foot)?
A. 14 ft B. 10 ft C. 12 ft D. 8 ft
Mathematics
Find the square root if it is a real number, or state that the expression is not a real number.
A. 5 B. -5 C. -25 D. not a real number
Mathematics
Divide.
A. -4 B. -6 C. -5 D. 5
Mathematics