Let X1, X2, and x3 be vectors in R3. If x1 is perpendicular to X2 and X2 is perpendicular to x3, is it necessarily true that x1 is perpendicular to x3? Prove your
answer.

You purchase a new car for $17,000 and are able to acquire a loan because of your excellent credit score. how much is the total interest and insurance per month if you use the whome insurance company from question 3 for your insurance coverage and don't qualify for the safe driver discount? credit apr (%) excellent 5.90 good 6.35 average 6.85 fair 7.40 poor 8.15 (1 point) $95.39 $150.52 $142.64 $162.33

Find the area of the regular hexagon if a side is 20 cm.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length