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kozerog [31]
4 years ago
5

AB is tangent to C. I need to find the value of r.

Mathematics
1 answer:
serious [3.7K]4 years ago
5 0
Tangent always meets radius at 90° angle.

Angle ABC = 90° so Pythagoras' theorem applies.

r² + 4² = (r+2)²
r² + 16 = r² + 4r + 4
12 = 4r
r = 3


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Given the graph of a radical function which statement is correct
Romashka [77]

Option D is correct. The correct statement that represents the graph is R: {y E R | y ≥ -3}

From the given graph, we are to get the range.

The range is the output value for which the  function of the graph exists. The required output values are the y-values.

From the graph shown, we can see that the range of y is from -3 to 1. This can be denoted as;

Range = [-3, 1)

This shows that the range of the graph are all the values greater than -3 including -3.

The correct statement will therefore be;

R: {y E R | y ≥ -3}

Learn more about range here: brainly.com/question/17611901

6 0
3 years ago
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The area between two values z1 and z2 (where z2>z1) is therefore 
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4 years ago
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But two angles may be separated and yet add 180°, then they are supplementary but are not linear angle pairs.
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4 years ago
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Fudgin [204]

Answer: z = -5/-3

Step-by-step explanation:

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6 0
3 years ago
What is the answer for 14a³ - 22a we have to Factorise it​
sveta [45]

Answer: 2a (7a² - 11).

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3 years ago
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