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3 years ago

7

Can someone help meeeee please thanks

1 answer:

erastovalidia [21]3 years ago

6 0

Answer:

A

Step-by-step explanation:

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the length of a chord of a circle is 24 cm long and is 5 cm away from the center of the circle what is the radius of the circle

iogann1982 [59]

Answer:A chord with length 24 cm at 5 cm from the center gives a radius of 13 cm, using a half-length of 12 cm and the distance of 5 cm in Pythagoras’s theorem to find the radius.

Using the same radius and Pythagoras's theorem again, a chord 10 cm from the circle with radius 13 cm has a half-length of sqrt(69), or a full length of double that, so 2*sqrt(69).

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3 years ago

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Which equations and/or functions represent the graphed line? Select three options.

9966 [12]

Answer:

Point slope form : $y-3=\frac{1}{2}(x-2)$

Slope intercept form: $y=\frac{1}{2}(x)+2$

Standard form : $-x+2y=4$

Step-by-step explanation:

From the given graph it is clear that the line is passing through the points, (-4, 0), (-2, 1), (0, 2), and (2, 3).

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

Let as consider any two points of the line: (2, 3) and (0, 2).

The equation of line is

$y-3=\frac{2-3}{0-2}(x-2)$

$y-3=\frac{1}{2}(x-2)$

The point slope form of the line is $y-3=\frac{1}{2}(x-2)$ .

$y-3=\frac{1}{2}(x)-\frac{1}{2}(2)$

$y-3=\frac{1}{2}(x)-1$

Add 3 on both sides.

$y=\frac{1}{2}(x)-1+3$

$y=\frac{1}{2}(x)+2$

Therefore the slope intercept form of the line is $y=\frac{1}{2}(x)+2$ .

Multiply both sides by 2.

$2y=x+4$

$-x+2y=4$

Therefore, the standard form of the line is $-x+2y=4$ .

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4 years ago

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Pierce works at a tutoring center on the weekends. At the center, they have a large calculator to use for demonstration purposes

Dimas [21]

Answer:

A

Step-by-step explanation:

12 divided by 3.6= 3.33

251 divided by 3.33 = 75.3 meters

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3 years ago

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adoni [48]

Express 0.31 as a fraction and express 0.2 as a fraction

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4 years ago

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