Solve the problem.For children aged 5 to 15 years, the number of hours watching cartoons per week can be estimated by the function
where s is the age of the child. Find the domain of the function.
A. { x is a real number}
B. { 2 ? x ? 13}
C. { 5 ? x ? 15}
D. { 1.1 ? x ? 13}
Answer: C
Mathematics
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Find projv u.v = 3i - j + 3k, u = 2i + 10j + 11k
A. i +
j +
k
B. i -
j +
k
C. i -
j +
k
D. i +
j +
k
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Graph.9x2 + 49y2 = 441
A.
B.
C.
D.
Mathematics
Plot the complex number.z = 3 + i
A.
B.
C.
D.
Mathematics
Solve.23(x - 92) = 46
A. x = 94 B. x = 92 C. x = 46 D. x = 90
Mathematics