please answer this with an explanation since my homework requires it thanks and I really appreciate it
2 answers:
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Answer:
Step-by-step explanation:
From C-A, it goes from y=1 to y=5, so that 4 units
From A-B, it goes from x = -1 to x = 4, that is 5 units
Now, to find distance from B to C, we need to use the distance formula:
Where the variables are the respective points of B and C,
B (4,5) & C(-1,1)
So x_1 =4, y_1=5, x_2=-1, y_2=1
Plugging into the formula we get:
Summing it all (perimeter is sum of 3 sides):
Distance =
3rd answer choice is right.
Answer:
Step-by-step explanation:
Given that,
The frequency of x-rays,
We need to find the wavelength for x-rays. The relation between wavelength, frequency and speed of light is given by :
So, the wavelength for x-rays is .