Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = -5i + 4j + 2k, v = 10i - 8j - 4k

A. 0; no direction
B. 15; (5i - 4j - 2k)
C. 0; 5i- 4j - 2k
D. 3(5i - 4j - 2k)


Answer: A

Mathematics

You might also like to view...

Use the graph to estimate the solution to f(x) = g(x).f(x) = 3 ln (2x) - 5, g(x) = -2.9

A. x ? -2.9 B. x ? 3 C. x ? 1 D. x ? 1.5

Mathematics

Solve.-2x - 72 = 7x + 9

A. -8 B. 8 C. -9 D. 9

Mathematics

Refer to the following recipe to first estimate the answer and then use multiplication or division to find the exact answer. Simplify. Old Grandma's Fork Cookies 1 cups brown sugar 1 cups white sugar 1 cups shortening 1 pinch salt 3 eggs 2 tsp soda 2

/> tsp cream of tartar 1 tsp vanillaCream sugars and shortening. Beat in remaining ingredients. Add flour to stiffen like regular cookie dough. Roll into balls, then flatten with a fork. Cook until brown.If the recipe is tripled, how much soda will be needed?

A. Estimate: 9 tbsp
Exact: 7 tbsp
B. Estimate: 7 tsp
Exact: 9 tsp
C. Estimate: 6 tsp
Exact: 6 tsp
D. Estimate: 9 tsp
Exact: 7 tsp

Mathematics

LSAT test scores are normally distributed with a mean of 500 and a standard deviation of 100. Find the probability that a randomly chosen test taker will score between 300 and 600. Round your answer to four decimal places. ?

A. 0.5907 B. 0.8185 C. 0.2954 D. 0.1815 E. 0.8175

Mathematics