Answer:
a) They have different wavelengths.
b) They have different frequencies.
Step-by-step explanation:
Electromagnetic waves (EM waves) refer to waves carrying electromagnetic radiant energy which are propagated through vacuum or non-vacuum (material medium). They range from radio waves to gamma rays; they travel through space at the speed of light (about 300 million metres per second) and they are measured in photons.
The EM waves have the following characteristics:
1. They have different wavelengths
2. They have different frequencies
3. They travel at the speed of light independent of the medium of propagation (vacuum or material medium)
4. They do not require a media to be propagated
<u>Based on the explanation above, Options </u><u>a</u><u> (They have different wavelengths) and </u><u>b</u><u> (They have different frequencies) are the correct answers</u>
Answer:
Step-by-step explanation:
Slope-intercept form is 
, so if 
, then we have 
and we'll need to plug in 
to get 
, the y-intercept:
Therefore, the final equation in slope-intercept form is
The amount after 3 years would be $221.74
<u>Explanation:</u>
Given:
Principal, P = $200
Rate of interest, r = 3.5%
Time, t = 3 years
Amount, A = ?
We know:
Substituting the value we get:
Therefore, the amount after 3 years would be $221.74
Answer: Choice (3): 
Remember that negative power is the same as reciprocal if the same magnitude power but positive.
Start with the slope formula, shown below.
m = y₂ - y₁ / x₂ - x₁
We take the second y minus the first y over the second x minus the first x.
So we have m = -8 - 4 / 9 - 1 or -12/8.
Notice that -12/8 can be reduced to -3/2.
So the slope of this line is -3/2.
The variable that's used to represent slope is <em>m</em>.
So here, we would say that m = -3/2.
