Find the sum of the first n terms of the geometric series for the given value of n. If necessary, round to three decimal places.625 + 125 + 25 + 5 + . . . , n = 7
A. 6.25
B. 781.24
C. 520.827
D. 4.167
Answer: B
Mathematics
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In a series RC circuit, i leads e by 50ø. Find the value of i when e = 0 v and i = 15 mA sin ¦ t.
a. 11.49 mA b. 9.6 mA c. 0 d. -9.4 mA e. -11.49 mA
Mathematics
Evaluate.
÷ (-3)
A. - 
B. 
C. - 
D. 
Mathematics
Find the domain and the range for the function.
A. Domain: (-?, ?), Range: (-?, ?)
B. Domain: 
, Range: [0, ?)
C. Domain: 
, Range: (-?, 0]
D. Domain: [0, ?), Range: 
Mathematics
Find the requested polynomial. Find a polynomial function of degree 3 with -2, 3, 5 as zeros.
A. f(x) = x3 - 6x2 - 1x + 30 B. f(x) = x3 + 6x2 - 1x - 30 C. f(x) = 3x3 + 6x2 - 1x - 15 D. f(x) = x3 + 8x2 - 1x - 6
Mathematics