Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimate exact     

A. Estimate: 49; exact: 44.66
B. Estimate: 49; exact: 53.66
C. Estimate: 49; exact: 54.66
D. Estimate: 50; exact: 55.66


Answer: C

Mathematics

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Assuming that the equations define x and y implicitly as differentiable functions   find the slope of the curve   at the given value of t.x = t sin t + t, y cos t + y = 2t, t = 

A.
B.
C. 2 + ?
D. - 

Mathematics

Provide an appropriate response. Determine the degree measure of ? if sin ? = 0.7022 rounded to the nearest tenth.

A. 45.4° B. 44.6° C. 0.8° D. 35.1°

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Find the y-intercept of the polynomial function.f(x) = x2(x - 6)(x - 4)

A. 24 B. 0 C. -6 D. -24

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Find the center and the radius of the circle.(x - 3)2 + (y + 5)2 = 25

A. (-5, 3), r = 5 B. (5, -3), r = 25 C. (-3, 5), r = 25 D. (3, -5), r = 5

Mathematics