Write the equation for the plane.The plane through the point A(2, 10, 2) perpendicular to the vector from the origin to A.
A. 2x + 10y + 2z = 
B. 2x + 10y + 2z = 108
C. 2x + 10y + 2z = -108
D. 2x + 10y + 2z = 14
Answer: B
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Solve problems using a calculator.A local water district purchased its annual supply of water from three different sources. The number of acre-feet purchased and the cost per acre-foot for each source are shown in the following table. Calculate the average cost of water per acre-foot. (Round to the nearest dollar, if necessary.)Source Number of Acre-Feet Cost per Acre-FootReservoir X 1109 $649Well Water 2740 $208State Water 4775 $2896
A. $1748.62 per acre-foot B. $1753.02 per acre-foot C. $1752.98 per acre-foot D. $1747.14 per acre-foot
Express the vector in the form v = v = v1i + v2j + v3k.
if A is the point (-6, -7, 3) and B is the point (-1, -14, 6)
A. v = 5i - 7j + 3k B. v = 5i - 7j - 3k C. v = 5i + 7j - 3k D. v = 5i + 7j + 3k
Add by using the number line.-5 + (-2)
A. 6 B. -3 C. -6 D. -7
Find the indicated probability.A spinner has regions numbered 1 through 21. What is the probability that the spinner will stop on an even number or a multiple of 3?
A. 
B. 17
C. 
D. 