Find the slope of a line tangent to the given curve at the point P by finding the limit of the slopes of the secant lines PQ as Q approaches P.y = 7x - 7x2; P is (5, -140); let Q have x-values of 4.5, 4.9, 4.99, 4.999
A. Slopes: -31.5, -34.3, -34.93, -34.993
m = -35
B. Slopes: -31.5, -34.3, -34.93, -34.993
m = -28
C. Slopes: -59.5, -62.3, -62.93, -62.993
m = -63
D. Slopes: -66.5, -69.3, -69.93, -69.993
m = -70
Answer: C
Mathematics
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sec 
A. 0
B. - 
C. 1
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Calculate the number of subsets and the number of proper subsets for the set.{1, 3, 5, 7, 9, 11}
A. 62; 63 B. 63; 62 C. 63; 64 D. 64; 63
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Write the Chinese numeral as a Hindu-Arabic numeral. src="https://sciemce.com/media/4/ppg__rrrr0613190920__f1q136g6.jpg" alt="" style="vertical-align: 0.0px;" height="12" width="13" />
A. 3570
B. 3057
C. 367
D. 357
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Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
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