Find the magnitude or direction angle of the given vector as indicated.u = i + j; Find the magnitude.
A. 1
B. 
C. 2
D. 
Answer: B
Mathematics
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Find an equation for the sphere with the given center and radius.Center (0, -9, -2), radius = 3
A. x2 + y2 + 3z2 + 18y + 4z = -76 B. x2 + y2 + z2 + 18y + 4z = -76 C. x2 + y2 + 3z2 + 18y - 4z = -76 D. x2 + y2 + z2 + 18y - 4z = -76
Mathematics
Provide an appropriate response.Divide 40 cm by 2 mm.
A. 20 cm B. 20 C. 200 D. 200 cm E. none of the above
Mathematics
Find the center of the ellipse.
+ 
= 1
A. (25, 4) B. (4, 0) C. (0, -4) D. (-4, 0)
Mathematics
Find the quotient.573.33 ÷ 100
A. 5733.3 B. 57,333 C. 57.333 D. 5.7333
Mathematics