<u><em>I'm almost confident that I did this wrong, but i tried...</em></u>
Answer:
4a-9 ÷ -19
Step-by-step explanation:
(It was easier for me to put it in fractions)
+ 
+ 
(3-a) (a-4) + (5-a) (a-3)
+ + 3 - a · a - 4 + 5 - a · a - 3
+ + 3 - a + 1 - a - 3
1 - a - a
1 - 2a
I don’t understand the question can you give more detail
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:
58 minutes
Step-by-step explanation:
s = 170 - 64 - 48
s = 58
Answer:
note that when opening the bracket the value outside the bracket with be used to multiply all the values inside the bracket... for example -(3/4+2/5) the (-) subtraction sign will be used to multiply all the values in the bracket including the addition sign therefore changing plus to minus
