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Firdavs [7]
3 years ago
5

The school board administered a reading test to all eighth-grade students at High Achievers Charter School and determined that 1

0 percent of them were reading below grade level.
Based on this data, which of the following conclusions are valid?

a) 10 percent of all students at HACS are reading below grade level.
b) 10 percent of all eighth-grade students at HACS are reading below grade level.
Mathematics
2 answers:
andrezito [222]3 years ago
6 0

Answer:

It is C

Step-by-step explanation:

In-s [12.5K]3 years ago
5 0

Answer:

b) 10 percent of all eighth-grade students at HACS are reading below grade level

Step-by-step explanation:

The sample is eight-grade students at High Achievers Charter School at a particular time and this forms a part of the total population of eight-grade students in the school. So we can conclude that for every eight-grade class in the school, 10% are reading below grade level.

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Step-by-step explanation:

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tatiyna

Answer:

Standard form: (x-\frac{1}{2})^2 + (y-0)^2 = 15

Center: (\frac{1}{2}, 0)

Radius: r =\sqrt{15}

Step-by-step explanation:

The equation of a circle in the standard form is

(x-h)^{2} + (y-k)^{2} = r^{2}

Where the point (h, k) is the center of the circle

To transform this equation 4x^{2} -4x + 4y^{2} - 59 = 0 this equation  in the standard form we use the method of square.

First, we group similar variables

(4x^{2} -4x) + (4y^{2}) - 59 = 0

Divide both sides of equality by 4

(x^{2} -x) + (y^{2}) - 14.75 = 0

Now we complete square for variable x.

Take the coefficient "b" that accompanies the variable x and divide by 2. Then, elevate the result to the square:

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Now add (\frac{b}{2})^2 on both sides of the equality

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Factor the expression and simplify the independent terms

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(x-\frac{1}{2})^2 + (y-0)^2 = 15

Then

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and the center is (\frac{1}{2}, 0)

radius r =\sqrt{15}

3 0
3 years ago
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Step-by-step explanation:

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