Use the given vectors to find the indicated expression.v = 5i - 4j - 2k, u = -4i + 3j - 2kFind v × (5u).
A. 14i - 7j - 1k
B. -140i - 95j - 160k
C. 70i + 90j - 5k
D. -70i - 90j + 5k
Answer: C
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A. (-2, 3) B. (3, -2) C. (-4, -5) D. (-5, -4) E. (-5, -2)
Use divisions to convert the base ten numeral to a numeral in the given base. 89 to base seven
A. 66seven B. 1520seven C. 155seven D. 152seven
Solve the problem.An experiment is done to compare the average fuel economy of two models of cars. Several cars of each model were tested under similar conditions. The results are in the two tables below. Which car model is better?Car XCar YFuel Economy, in mpgFuel Economy, in mpg22 21 27 24 22 18 21 2221?21?27?27?27?24?21?2422?24?18?22?21?18?21?24
A. Car X B. Car Y
Factor the trinomial.u2 - 11u + 30
A. (u + 6)(u + 5) B. (u - 6)(u + 5) C. (u + 6)(u - 5) D. (u - 6)(u - 5)