A painting class and a sculpturing class join other classes to hear a guest speaker. A total of 150 people attend, of which 45 are in the painting or sculpturing class, 4 are in both, and 18 are in the sculpturing class. If a person is selected at random, find the probability the person is in the painting class.
What will be an ideal response?
Mathematics
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Find T, N, and B for the given space curve.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 2tk
A. T = 
i - 
j + 
k; N = 
i + 
j ; B = - 
i + 
j + 
k
B. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
C. T = 
i + 
j + 
k; N = 
i + 
j; B = 
i + 
j + 
k
D. T = 4
i - 4
j + 2k; N = 3
i + 3
j; B = - 1
i + 1
j + 4
k
Mathematics
Find the foci of the ellipse.36x2 + 100y2 = 3600
A. (0, ±8) B. (±10, 0) C. (±36, 0) D. (±8, 0)
Mathematics
Find the approximate annual percentage rate using the approximate annual percentage rate formula. Round to the nearest tenth of a percent.Amount financed: $17,200Finance charge: $3,546Number of monthly payments: 48
A. 20.6% B. 5.0% C. 10.1% D. 39.6%
Mathematics
Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
Mathematics