9514 1404 393
Answer:
Step-by-step explanation:
The tangent of the angle can be found using the identity for the tangent of the difference of angles.
tan(α-β) = (tan(α) -tan(β))/(1 +tan(α)tan(β))
The tangent of the angle of each vector is the ratio of the j coefficient to the i coefficient.
tan(α) = -2/3
tan(β) = 4/7
tan(α-β) = (-2/3 -4/7)/(1 +(-2/3)(4/7))
= (-14-12)/(21 -8) = -26/13 = -2
Then the magnitude of the angle between the vectors is ...
arctan(2) ≈ 63.43°
If you add them all together, you'd get 157. Then you divide by 7 and you'd get 31.4
B or D so sorry these ones are confusing written like this.
Gave a lovely weekend.
Answer:
$17.48
Step-by-step explanation:
^^^^^^^^^^^^^
Answer:
$3.00
Step-by-step explanation:
First you will see how much ounces 1 pound is and it will be 16 then if you multiply 16 by 2 you get 32 so I'd be 2 pounds and If 1 pound is $1.50 then 2 pounds would be $3.00
