In the figure, if BD = 9 ft and AD = 3 ft, find CD.
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Mathematics
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Solve the problem.The position of a particle is given by r(t) = sin 7t i + cos 3t j. Find the velocity vector for the particle.
A. cos 7t i - sin 3t j B. 7 cos 7t i - 3 sin 3t j C. 7 i + 3 j D. 7 sin 7t i + 3 cos 3t j
Mathematics
Solve the equation for x if 
. Give your answer in radians using exact values only.
?
What will be an ideal response?
Mathematics
In ABC,AB 4 cm and A 70°
a) Sketch a diagram to show that there are two triangles with BC 3.8 cm. b)To the nearest degree,measure C for each triangle. c) To the nearest hundredth of a centimetre,calculate the length of BC for which ABC is a right triangle.
Mathematics
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Mathematics