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AleksandrR [38]
3 years ago
12

Hi i need help on geometry ​

Mathematics
1 answer:
kvv77 [185]3 years ago
3 0
Hi yes tell me pyhhbbb
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In the figure below, the segment that appears to be tangent to the circle is tangent to the circle. Which of the following is th
maria [59]

Answer:

Step-by-step explanation:

Check attachment for diagram,

Since line AB is tangent to the circle then, <OAB is a right angle,

Then, we can apply Pythagoras theorem to the right angle triangle,

NOTE: from the centre of the circle to the tangent point at A is the radius of the circle,

And also, the total length of OB is

OB = r + 15

Then, applying Pythagorean theorem

OB² = OA² + AB²

(r+15)² = r² + 25²

(r+15)(r+15) = r² + 625

r² + 15r + 15r + 225 = r² + 625

Collect like terms

r² + 30r - r² = 625 - 225

30r = 400

Divide both sides by 30

r = 400 / 30

r = 13.33

So, the diameter of the circle is related to the radius by the relation

Diameter = 2 × radius

d = 2 × r

d = 2 × 13.33

d = 26.67

To the nearest tenth implies that to 1d•p

d ≈ 26.7

So, the diameter of the circle is 26.7

6 0
3 years ago
2x – 4y = 14<br> x = 2y – 2<br><br> What is the solution to the system?
anastassius [24]
2x-4y=14
X=2y-2

2x-4y=14
x-2y=-2

x-2y=12
x-y=-6
5 0
3 years ago
Check if (1,6) is the solution to the system shown below
Andre45 [30]

Answer:

no

Step-by-step explanation:

To determine if (1, 6) is a solution, substitute x = 1, y = 6 into the left side of both equations and if the value obtained equals the right side then it is a solution.

10(1) - 6 = 10 - 6 = 4 ≠ - 6

- 10(1) + 5(6) = - 10 + 30 = 20 ≠ 30

Then (1, 6 ) is not a solution to the system

4 0
3 years ago
Simplify.<br> 10y-5y<br> Tfgfffgghjjjjb
sweet [91]
Its 5y sorry if it’s wrong
4 0
2 years ago
I need help with writing a word problem that can be evaluated by the algebraic expression 372 + r, and evaluate it for r = 137.
Soloha48 [4]

Gabe had 372 apples and r grapes. The total of grapes and apples gabe has are 509. How many grapes did gabe have?


4 0
3 years ago
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