Mathematics, 18.07.2019 04:30 ktip2018
Find a middot a for each of the following n-tuples. (a) a = (2, -1), b = (-1, 1) (b) a = (-1, 3), b = (0, 4) (c) a = (2, -1, 5), b = (-1, 1, 1) (d) a = (-1, -2, 3), b = (-1, 3, -4) (e) a = (pi, 3, -1), b = (2 pi, -3, 7) (f) a = (15, -2, 4), b = (pi, 3, -1) find a middot b for each of the above n-tuples. using only the four properties of the scalar product, verify in detail the identities given in the text for (a + b)^2 and (a - b)^2. which of the following pairs of vectors are perpendicular? (a) (1, - 1, 1) and (2, 1, 5) (b) (1, -1, 1) and (2, 3, 1) (c) (-5, 2, 7) and (3, -1, 2) (d) (pi, 2, 1) and (2, -pi, 0) let a be a vector perpendicular to every vector x. show that a = o.
Answers: 3
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Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles
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Mathematics, 21.06.2019 15:20
Which equation represents a circle with a center at (β3, β5) and a radius of 6 units? (x β 3)2 + (y β 5)2 = 6 (x β 3)2 + (y β 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36
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Mathematics, 21.06.2019 18:00
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.
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Mathematics, 21.06.2019 21:00
Find the perimeter of the triangle with vertices d(3, 4), e(8, 7), and f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.
Answers: 1
Find a middot a for each of the following n-tuples. (a) a = (2, -1), b = (-1, 1) (b) a = (-1, 3), b...
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