Answer:
y = 240sin(180πx)
Step-by-step explanation:
This the answer because a is represented by the amplitude, 240, and the frequency is equal to IbI/2pi. to solve for b, multiply the frequency by 2pi.
4x=5x-12
subtract 5x from each side
-x=-12
to get a positive x multiply each side by a -1
x=12
Hope I helped :)
Answer:
L = 55 in, W = 20 in
Step-by-step explanation:
Hi there!
First we have to set up an equation for the length, which can be written as 3x - 5.
The formula for perimeter of a rectangle is 2l + 2w = p, so we can plug in some values here.
l = 3x - 5
w = x
Now we just have to solve!
When we combine like terms and add ten to both sides, we are left with
, which means x = 20
Using this, that means the width is 20
We can find the perimeter by plugging 20 in for x.
This means the length is 55.
Answer:
Sara is twenty because 32+8=40 and 40/2=20 Glad to be of your help!
Step-by-step explanation:
<3
Answer:
Selling price= $58.5
Step-by-step explanation:
Giving the following information:
Guitar cost price= $45
Mark up percentage= 30%
<u>To calculate the selling price of the guitar, we need to use the following formula:</u>
Selling price= cost price*(1+mark up)
Selling price= 45* (1+0.3)
Selling price= 45*1.3
Selling price= $58.5