A jet heads in the direction N 30° E at a speed of 400 mi/h. If the jet experiences a 20 mi/h crosswind flowing due east, find the true velocity w.
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Find the domain and range of the function.f(x) = 3 - x2
A. D: (-?, ?), R: (-?, ?) B. D: (-?, ?), R: (-?, 3] C. D: (-?, 3], R: (-?, ?) D. D: (-?, ?), R: [3, ?)
Round the decimal to the given place value.43.4444 (nearest hundredth)
A. 43.54 B. 43.34 C. 43.44
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = x3 + 8x2 + 20x + 16
A. 2, crosses the x-axis; -2, touches the x-axis and turns around; -4, crosses the x-axis. B. -2, crosses the x-axis; -4, touches the x-axis and turns around C. 2, crosses the x-axis; -2, crosses the x-axis; -4, crosses the x-axis. D. -2, touches the x-axis and turns around; -4, crosses the x-axis.
Evaluate the root, if possible.
A. 4 B. 16 C. 8 D. -4