The area of the triangle having vertices P(20, 12), Q(2, 10), and R(3, 15) can be written using a determinant. What is the sum of the elements in the first column of that determinant?
??
A. 33
B. 13
C. 19
D. 25
E. 37
Answer: D
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Solve the problem.About how accurately must the interior diameter of a cylindrical storage tank that is 16 m high be measured in order to calculate the tank's volume within 0.2% of its true value?
A. Within 0.1% B. Within 0.2 meters C. Within 0.2% D. Within 0.1 meters
Evaluate the limit by direct evaluation. Change the form of the function where necessary.
A. 1/5 B. 2/11 C. Does not exist D. 11/2
Simplify. Leave your answer in exponent form.(510)(530)
A. 5300 B. 2540 C. 540 D. 520
Determine where the function is increasing and where it is decreasing.f(x) = -x2 - 2x
A. increasing on (-1, ?) decreasing on (-?, -1) B. increasing on (-?, 1) decreasing on (1, ?) C. increasing on (-?, -1) decreasing on (-1, ?) D. increasing on (1, ?) decreasing on (-?, 1)