The period of the cosine function is 2π radians. That is, the value of cos(Θ) repeats every 2π radians. Therefore whatever value of the variable in the function argument causes the argument to change by an amount equal to 2π is the period of the function.
<span>The argument of cos(x/3) is x/3. What value of x makes x/3 = 2π </span>
<span>
x/3 = 2π </span>
<span>
x = 6π
</span>
<span>Therefore the period of y =cos(x/3) is 6π</span>
Answer:
y = 2x -1
Step-by-step explanation:
y = mx + b
y = 2x + b
7 = 2(4) + b
7 = 8 + b
-8 -8
-1 = b
Where is it? Don’t see it so uh
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
Find the interest
Answer:
Then,
y=10-8
y=2
Step-by-step explanation:
solve the equation