Find the formula and limit as requested.For the function f(x) = 10 - 3x2 , find a formula for the lower sum obtained by dividing the interval [0, 1] into n equal subintervals. Then take the limit as n?? to calculate the area under the curve over [0, 1].
A. 10 - 
; Area = 9
B. 10 - 
; Area = 9
C. 10 + 
; Area = 11
D. 
; Area = 1
Answer: A
Mathematics
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?
A. 
B. 
C. 
D. 
Mathematics
Solve the system of linear equations.
x + 
y = 4
x - 2y = 21
A. No solutions B. (6, -8) C. Infinitely many solutions D. (-6, 8)
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
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Choose the graph that satisfies the given conditions.Polynomial of degree 4 with two distinct x-intercepts and a negative leading coefficient
A. 
B. 
C. 
D. 
Mathematics