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Vladimir [108]
3 years ago
13

Identity true statements about quadratic function y = ax^{2} +bx+c, where a =/= 0.

Mathematics
1 answer:
vesna_86 [32]3 years ago
3 0
The true statements are (1) and (2)
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How do you work out a percentile rank of a score of 57
arlik [135]
To do that you'll need the mean and standard deviation of all the scores.  Can you provide this info?

For example:  Supposing that the mean of these scores were 52 and the standard deviation 3.  You'd need to find the "z-score" of 57 in this case.
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It is  z = ------------ , or z = 5/3, or z = 1.67.
                     3

Find the area to the left of z = 1.67.  Multiply that area by 100% to find the percentile rank of the score 57.
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3 years ago
What is the difference between squaring and taking the square root ?
wel

Answer:

Squares are the numbers, generated after multiplying a value by itself. Whereas square root of a number is value which on getting multiplied by itself gives the original value.

Step-by-step explanation:

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2 years ago
Solve equation and write reason for each step x+25=45
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Find the measure of an angle between 0º and 360º coterminal with an angle of –110º in standard position
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<h2>Answer:</h2>

An angle measures how how much you have to rotate one line called <em>initial side</em> so it lies on the top of other line called the <em>terminal side. </em>Angles whose vertex is located at the origin having the initial side on the positive x-axis is said to be in standard position. On the other hand, coterminal angles are angles in standard position having the same terminal side. In this way, for the angle:

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Graph y=sinx and y=cosx in the same viewing window. Which function could be the derivative of the other? Defend answer in terms
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