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lesantik [10]
3 years ago
14

Which of the following are techniques you have learned so far for solving a quadratic equation?

Mathematics
1 answer:
Usimov [2.4K]3 years ago
6 0
On plato it is A AND B.

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The area of circle B is 144 pi ft². Find the circumference of circle B.
Sonbull [250]
Circumference = square root (Area * 4 * PI)
circumference = square root ( <span> <span> <span> 452.3893421169 </span> </span> </span> * 4 * PI )
<span>circumference = square root ( 5,684.8921350275)
</span>circumference = <span> <span> <span> 75.3982236862 </span> </span> </span>


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An internal census of the salaries of animals employed by United Pets Inc. shows that the median salary for dogs is considerably
RUDIKE [14]

Answer:

c. Different departments tend to pay different salaries, and dogs are more likely than cats to work in lower-paying departments.

Explanation:

The only explanation for difference in median results is that dogs take up jobs in both higher paying departments and lower paying departments while cats take up jobs in only higher paying departments only. In other words the median results for dogs when compared in general would be higher than that of the cats

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What is the slope of the line shown below?
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A

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6/3

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BRAINLIEST ASAP! PLEASE HELP ME :)
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Third choice

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Which point is on the circle centered at the origin with a radius of 5 units?
Aleonysh [2.5K]

Answer:

(2,√21)

Step-by-step explanation:

The circle centered at the origin has equation:

{x}^{2}  +  {y}^{2}  = 25

Any point that satisfies this equation lie on this circle.

When x=2, we substitute and solve for y.

{2}^{2}  +  {y}^{2}  = 25 \\ 4 +  {y}^{2}  = 25 \\  {y}^{2}  = 25 - 4 \\ {y}^{2}  = 21

Take square root to get:

y =  \pm \sqrt{21}

Therefore (2,-√21) and (2,√21) are on this circle.

From the options, (2,√21) is the correct answer

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3 years ago
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