Let the frequency be 'f' and wavelength be 'w'
, 
w= 100 m and f = 3,000 kilohertz
Plug in the above values to find k
3000 = 
To find k, multiply both side by 100
3000(100) = k
k = 300,000
So equation becomes,
w= ? f = 500 kilohertz
500 = 
w = 
w = 600 m
Answer:
Step-by-step explanation:
Please mark as brainliest
Answer:
The answer is letter A.
Step-by-step explanation:
The amount that each company charges per hour on the pool is known, however the amount of hours they will be working is not, and is needed to distinguish which company is cheaper. Therefore, the number of hours is substitued by x and it is right next to the amount they charge for each hour. To find what each company charges, you must sum up what they charge and what they charge per hour, times the hours they will have to work on it( which is unknown and by x).
<h3><u>The value of the unknown number is equal to 1.</u></h3>
6(x + 2) = 20x - 2
Distributive property.
6x + 12 = 20x - 2
Subtract 6x from both sides.
12 = 14x - 2
Add 2 to both sides.
14 = 14x
Divide both sides by 14.
x = 1
Reflect over x-axis rule: (x,y) -> (x,-y)
(-5,3) --> (-5,-3)
(-2,-6) --> (-2,6)
(-4,-8) --> (-4,8)
