In dry air at a temperature of 68 F, sound travels at the speed of 767 mph or 1125 ft/sec. How many seconds does it take sound to travel 1 miles (5280 ft) in air?
Answers
Answer:
The answer is 4.69 sec
Step-by-step explanation:
We know time taken = distance / speed
here 1 mile = 5280 feet , so 767 mph = 767x 5280 feet /( 60x60 ) s = 1124.93 feet / sec .
now , time taken
It will take 4.69 sec for the sound to travel 1 mile or 5280 feet .
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9 goes into 34 three times
3 <---------- this is your whole number
Now 9 x 3 is 27. 34 - 27= 7
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a. x = –10.6
b. x = –0.8
c. x = 0.8
d. x = 10.6
Answers
-4.9=-4.9
Answer is C
4
B.
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C.
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D.
28
Answers
Answer D
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Answers
In the y-axis, number 3, the whole horizontal line is the reflection line given.
Unfortunately i couldnt draw the shape because i didnt know the coordinates
Final answer:
Reflection across y=3 in mathematics means that every point or object is mirrored over the line y=3. This results in the x-coordinate remaining the same, while the y-coordinate changes, following the formula (x, y) => (x, 2*3-y). It involves mirroring the points above and below the line y=3.
Explanation:
In mathematics, reflection across y=3 implies that every point or object on the coordinate plane is mirrored over the horizontal line y=3. Let's say you have a point (x,y), when it is reflected over y=3, the new point will remain at the same x position, but its y-coordinate changes. The formula for reflection is (x, y) => (x, 2*3-y). Therefore, if a point is above the line y=3, it will be reflected below it and vice versa. For example, if you have a point at (5,4), it will be reflected onto the point (5,2).
Learn more about Reflection in Mathematics here:
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