Rationalize the denominator. Assume that all variables represent positive real numbers.-
A. -
B. -
C. -
D. -
Answer: C
Mathematics
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Compute r''(t).r(t) = (cos 3t)i + (2 sin t)j
A. r''(t) = (-3 cos 3t)i + (2 sin t)j B. r''(t) = (-9 cos 3t)i + (-4 sin t)j C. r''(t) = (9 cos 3t)i + (-2 sin t)j D. r''(t) = (-9 cos 3t)i + (-2 sin t)j
Mathematics
Find the x-intercepts of the graph. Do not graph the equation.
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A.
B. ?
C. ?
D. ?
E. ?
Mathematics
Check whether this set and operation form a group. Answer yes, no, or in definably.
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What will be an ideal response?
Mathematics
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.b = 7 yd, c = 14 yd
A. a = 7 yd B. a ? 12.1 yd C. a ? 9.9 yd D. a ? 4.6 yd
Mathematics