Provide an appropriate response.True or false? The equation -x2 = - 25 has no real solutions. If false, give the solution or solutions.
A. True
B. False; 5 and -5
C. False; 5
D. False; -5
Answer: B
Mathematics
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Find the length of the curve with the given vector equation.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j ; -4 ? t ? 5
A. 9 B. 82 C. 18 D. 41
Mathematics
Use the information below to determine the cardinality of the set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}n(U)
A. 10 B. 19 C. 5 D. 9
Mathematics
Choose the most reasonable unit of measure.Area of a photograph: 23 
(in.2, ft2, yd2, mi2)
A. yd2 B. mi2 C. ft2 D. in.2
Mathematics
Determine if the function is even, odd, or neither.f(x) = x4 - 2x2 + 2
A. Even B. Neither C. Odd
Mathematics