Mathematics, 28.01.2021 14:00 lenniestreet10

1. Find a • b. a = <7, 4>, b = <3, 5>

A. 41
B. <10, 9>
C. -1
D. <21, 20>

2. Find a • b.
a = 10i + 9j, b = 4i + 3j

A. <40, 27>
B. <14, 12>
C. 67
D. -13

3. Find the angle between the given vectors to the nearest tenth of a degree.
u = <8, 7>, v = <9, 7>

A. -8.3 degrees
B. 1.7 degrees
C. 3.3 degrees
D. 13.3 degrees

4. Determine whether the vectors u and v are parallel, orthogonal, or neither.
u = <10, 6>, v = <9, 5>

A. Orthogonal
B. Parallel
C. Neither

5. Evaluate the expression:
v•w
Given the vectors:
r = <5, -5, 2>; v = <2, -8, -8>; w = <-2, 6, -5>

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 20:10

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Answers: 2

Answer

Mathematics, 21.06.2019 20:30

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

Answers: 2

Answer

Mathematics, 21.06.2019 21:30

Which of the following shows the length of the third side, in inches, of the triangle below

Answers: 2

Answer

Mathematics, 21.06.2019 21:30

Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.

Answers: 3

Answer

You know the right answer?

1. Find a • b. a = <7, 4>, b = <3, 5>

A. 41
B. <10, 9>
C....

Questions