Evaluate the sum using the given information.x1 = -5, x2 = 4, x3 = 5, x4 = 3, and?x = 0.1; f(x) = x2
A. 7.5
B. 30
C. 1.1685
D. 5.7
Answer: A
Mathematics
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Find an equation for the line tangent to the curve at the point defined by the given value of t.x = 9t2 - 6, y = t2, t = 1
A. y = 
x - 
B. y = 9x - 
C. y = 
x + 
D. y = 
x + 1
Mathematics
As part of a study on the metabolism of athletes, 400 college basketball players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 215 pounds and the standard deviation is 15 pounds.Approximately how many players had weights between 215 and 225 pounds?
A. 50 B. 25 C. 20 D. 100 E. none of these
Mathematics
Graph the function.g(x) = -5x - 10
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
- 
= 
A. {20} B. {-20} C. {4} D. {-4}
Mathematics