Answer:
500m
Step-by-step explanation:
Given data
Frequency= 600,000 Hz
Speed= 300,000,000 m/s
We know that the formula for speed is
v=fλ
substitute
300,000,000=600,000λ
λ=300,000,000/600,000
λ=500 m
Hence the wave length is 500m
The answer is C.
A dilation is a transformation whose preimage and image are similar.
Since the apostrophe (') shows that these coordinate points have already been altered and the scale factor is greater than 1, we know the dilation is an enlargement. Therefore, we must divide each number by the scale factor, 7 to get the answer C.
Answers:
- first blank = not sure (see explanation below)
- second blank = 3*sqrt(6)
- third blank = 3pi
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Explanation:
Use your calculator to compute 3*sqrt(6) = 7.348469 which is approximate.
We can see that 3*sqrt(6), aka 7.348469, is between 7 and 9
Do the same for 3pi to get 3pi = 9.424778 approximately. So this goes between 9 and 11
As for the first blank, between 5 and 7, it seems like an answer choice is missing. So I would ask your teacher about that. If your teacher meant it to be left blank, then just ignore it.
"two times a number x, less 15, is greater than or equal to 4 times the number y"
=
2x - 15 >= 4y
Hope it helps
Answer:
a. y = 1/6x + 2
Step-by-step explanation:
You divide everything by 6, then move the -1/6x to the other side, which causes the sign to flip from - to +.