Complete.20 km = 
mi (Round to the nearest tenth.)
A. 32.2
B. 12.4
C. 18.9
D. 21.2
Answer: B
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Which of the following expressions is (are) linear equations?
a. 3x + 5 b. x + 18 = 30 c. 2x - 4 = 16 d. both b and c e. all of the above
Graph the function. Find the vertex, y-intercept, and x-intercepts (if any).F(x) = 2x2 - 4x + 5
A. vertex: (1, 3)
x-intercept: (0, 0), y-intercept: (0, 5)
B. vertex: (1, 3)
x-intercept: none, y-intercept: (0, 5)
C. vertex: (1, 3)
x-intercept: (5, 0), y-intercept: none
D. vertex: (1, 3)
x-intercept: none, y-intercept: (0, 5)
Provide an appropriate response.Find all of the higher-order derivatives of x(t) = x4 - 3x2 - x. Use your graphing calculator to graph x(t) and x'(t) on the same axes. Verify that when x(t) is decreasing (sloping downward), the value of x'(t) is negative. Repeat this for x'(t) and x''(t), for x''(t) and x'''(t), and for x'''(t) and x(4)(t).
What will be an ideal response?
Compute the product.
A. 
B. 
C. 
D. 