Solve the problem using the quadratic formula.For a car traveling at x mph, stopping distance is estimated by the formula 
Find a (maximum) safe speed for a stopping distance of 670 ft. Round your answer to the nearest mph.
A. 75 mph
B. 72 mph
C. 63 mph
D. 67 mph
Answer: C
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = 
7
A. F = 7
6i + 
j + 7
k
B. F = 7
6i + 
j - 7
k
C. F = 7
6i + 
j + 7
k
D. F = 
i + 
j - 7
k
Mathematics
Use the LCD to clear fractions and solve the given equation.
x + 
= 
A. 
B. 
C. 
D. - 
Mathematics
Graph the linear function and give the domain and the range. If the function is a constant function, identify it as such.h(x) = 3x
A. D = (-?, ?), R = (-?, ?)
B. D = (-?, ?), R = (-?, ?)
C. D = (-?, ?), R = (-?, ?)
D. D = (-?, ?), R = (-?, ?)
Mathematics
Write the statement in words and decide whether it is true or false.7 ? 4
What will be an ideal response?
Mathematics