Cos (πt - 1) oscilates periodically between -1 and +1.
3Cos (πt - 1) oscilates periodically between -3 and +3.
The x-axis is the middle line. The equation of the x-axis is y = 0.
So the, the middle line is y=0.
Answer:
s = - 12.8
Step-by-step explanation:
Given
= - 3.2 ( multiply both sides by 4 to clear the fraction )
s = 4 × - 3.2 = - 12.8
Just try Google or calculator millions of sites simplify it
Answer:
60
Step-by-step explanation:
Because 7.7^2 equals 60,
Answer:
Carla pays $21.4 for the dress with tax.
Step-by-step explanation:
Here we are given that :
Price of dress = $20
Sales tax = 7%
Price of dress with tax = $20 + 7% of 20
Price of dress with tax = 20+1.4 = 21.4
Price of dress with tax = $21.4
Carla pays $21.4 for the dress with tax.