Answer:
Using the relation between angles and sides of any triangle the answer is:
Third option: WX, XY, YW
Step-by-step explanation:
<X=90° (right angle)
<W=51°
<Y=?
The sum of the interior angles of any triangle is 180°, then:
<W+<X+<Y=180°
Replacing the given values:
51°+90°+<Y=180°
141°+<Y=180°
Solving for <Y: Subtracting 141° both sides of the equation:
141°+<Y-141°=180°-141°
<Y=39°
The order of the angles from smallest to largest is:
<Y=39°, <W=51°, <X=90°
The opposite sides to these angles must be ordered in the same way:
Opposite side to <Y: WX
Opposite side to <W: XY
Opposite side to <X: YW
Then the order of the sides from smallest to largest is:
WX, XY, YW
Answer: Choice C
(4, 18)
=========================================
Explanation:
One point shown on the graph is (2,9)
If we double each x and y coordinate, then
We go from (2,9) to (4,18)
Plotting this point on the graph will be on the same line as the other points.
Or you could note that y/x = 9/2 = 18/4 = 4.5
Answer: 90 degrees
Step-by-step explanation:arcs qr and ts are vertical angles so they are the same amount. then take half the circle 180 degrees subtract 90 and that's your answer since 90 is half of 180 90 is your final answer
Answer:
Positive feedback is a high-pitched sound that comes out of speakers when something about the arrangement or the calibration of the audio system is not suitable for the desired setting. And if you aren't talking about speakers positive feedback occurs to increase the change or output
Explanation:
When you speak in front of a large audience, you obviously have to be loud enough to be audible to everyone present. Sure, you can shout to be loud enough, but that’s not what I, or anyone else (including your doctor), would recommend. Therefore, you speak into a microphone (or simply, a mic). The mic transmits your voice to another device, known as an amplifier, which enhances the amplitude of the signals that it received from the mic. These ‘amplified’ signals are then sent to the speakers (audio output), where electrical signals are converted into sound and subsequently discharged to the audience. However, if the sound discharged from the speakers somehow reaches back to the mic (which ideally shouldn’t happen), the process discussed above kick-starts again, i.e., the mic transmits sound to the amplifier, which then transmits to the speaker, and back to the mic… and then this goes on and on. The result is that you hear a high-pitched squeal, which gets louder and louder (due to the reinforced amplitude as a result of multiple rounds of amplification) until it is corrected.
T^2-12t+27
T^2-9t-3t+27
T(t-9)-3(t-9)
(t-9)(t-3)