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ASHA 777 [7]
4 years ago
6

Write the equation in standard form for the parabola with vertex (0,0) and directrix y=-6

Mathematics
1 answer:
Serggg [28]4 years ago
7 0
This is a parabola which  has vertex at the origin and opens upwards.

general form  is x^2 = 4ay   where a is the focus

the focus is the same distance from the vertex as the directrix  So it is at the point (0, 6)

required equation is x^2 = 4*6 y

or y = (1/24) x^2
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Write a number with two decimal places that are bigger than 4 1/5 but smaller than 4.25
Usimov [2.4K]

Answer:4.21,4.22,4.23, 4.24

Step-by-step explanation:

4 1/5 is 4.2 as a decimal and the numbers between 4.2 and 4.5 as numbers with 2 places past the decimal place are the ones above.

7 0
3 years ago
Help me please I don't understand the question<br>​
MA_775_DIABLO [31]

Answer:

y = - 2x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

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m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

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4 0
3 years ago
In a random sample of 70 people, it was found that 44 of them were fans of the New York Yankees. What is the margin of error for
Veronika [31]
The general formula for the margin of error would be:

z * √[p (1-p) ÷ n]

where:
z = values for selected confidence level
p = sample proportion
n = sample size

Since the confidence level is not given, we can only solve for the 
<span>√[p (1-p) ÷ n]  part.
</span>
p = 44/70
n = 70

√[44/70 (1 - (44/70) ÷ 70]

√[0.6286 (0.3714)] ÷ 70

√0.2335 ÷ 70

√0.0033357 = 0.05775 or 0.058 Choice B.



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i feel like u are going to delete this but if this helped please don't delete it the answer is, Simon is correct because even though the input values are opposite in the reflected function, any real number can be an input.

6 0
3 years ago
Read 2 more answers
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stellarik [79]

Answer:

The answer should be 12 1/2.

Step-by-step explanation:

If not let me know. If so, brainliest??

8 0
3 years ago
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