Express the vector as a product of its length and direction.12i - 4j - 18k
A. 22(i - j - k)
B. 22
C. 22
D. 22
Answer: B
Mathematics
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Find the reciprocal of the number.-8
A. 8
B. 
C. 0
D. - 
Mathematics
Solve.The surface area of a cylinder with height, h, and base radius, r, is given by A = 2?rh + 2?r2. Using 3.14 for ?, find the surface area of a cylinder with a radius of 2 cm and a height of 20 cm.
A. 251.2 cm2 B. 263.76 cm2 C. 276.32 cm2 D. 753.6 cm2
Mathematics
Write the ratio as a fraction in simplest form.2 to 5
A. 
B. 
C. 
D. 
Mathematics
Find an equation for the ellipse described. Graph the equation.Foci at (-1, 2) and (-5, 2); vertex at (-8, 2)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics