Answer:


Step-by-step explanation:
<u>Sum Of Vectors</u>
Given

the sum of both is

Given a vector

The magnitude of \vec x is

And the angle is forms with the positive x-axis is

We have


Also


The sum of both vectors is


The magnitude of the sum is

We compute the angle (direction)


Rounding to the nearest integer

Rounding the magnitude

Amplitude: 1/4 (= |a|)
Frequency: 1/2 (= |b|)
Period: 4pi (= 2pi/|b|)
Answer:
y= -4x
Step-by-step explanation:
hope this helps and lmk if you need anything!
To find this answer multiply the cost of the ice cream by 18%/100, or .18
$154 x .18 = $27.72