4 years ago

How to determine the direction of a vector?

1 answer:

8 0

Using the (x,y) coordinate or unit circle concept, find which quadrant the vector is in by the signs of x and y. Take the arcTan( y/x) for its reference angle, then draw the vector in that quadrant.

You might be interested in

Which expression is equivalent to n(25+35) by the disterbutive property

Phoenix [80]

It is 60n or 25n+35n

6 0

3 years ago

Sue answer 43 out of 60 questions correctly. What percentage of her answers are incorrect round the percentage to one Decimal Pl

Irina18 [472]

Answer: 28.3 %

Step-by-step explanation:

60-43 = 17

17/60 = 0.283

7 0

3 years ago

The cost of having photos taken includes a sitting fee and $12 for each portrait. The cost of 3,6, and 9 photos respectively is

Eddi Din [679]

Answer:The sitting fee is 15 dollars

Step-by-step explanation:If you were to use the formula y=mx+b then the starting equation would be y=12x+b. It already gave you the cost for the amount of photos respectively so 51=12(3)+b. 12 times 3 equals 36 and 51 minus 36 equals 15. The same way would be used for 87 dollars and 123 dollars while using the amount of photos respectively. 87=12(6)+b. 12 times 6 equals 72. 72 plus 15 equals 87. 123=12(9)+b. 12 times 9 equals 108. 108 plus 15 equals 123. Therefore the sitting fee is 15. (51=12(3)+15, 87=12(6)+15, 123=12(9)+15)

4 0

3 years ago

For the line that passes through Y(3,0), parallel to DJ with D(-3,1) and J(3,3), complete the following: Find the slope. Write a

Ulleksa [173]

I am going to graph the situation on an external graphing utility and show you the answer, it will take a

minute, stay with me.