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AURORKA [14]
3 years ago
15

The sides of ∠A are tangent to circle k(O) with radius r. Find: r, if OA=14 dm, m∠A=90°.

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
6 0

Answer:

r = √98

Step-by-step explanation:

angle A and the diameter form an isosceles right triangle, with OA as the hypotenuse and r as the other sides. You can then make and solve an equation from the Pythagorean Theorem:

r^2 + r^2 = 14^2

2r^2 = 14^2

2r^2 = 196

r^2 = 98

r = √98

Anvisha [2.4K]3 years ago
4 0

Answer:

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The angle A is 90 degree.

The side OA is 14.

There will be a right triangle formed.

So, Using Pythagorean theorem,

r^2+r^2=14^2

2r^2=196

Dividing 2 in both sides

r^2=\frac{196}{2}=98

r=\sqrt{98}

r=7\sqrt{2}

So,the answer is 7\sqrt{2}     :     Answer

Hope it will help :)

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ioda

Answer:

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Step-by-step explanation:

Given

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y=\frac{1}{4}x-\frac{1}{4}*3 - 2

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y=\frac{1}{4}x+\frac{-11}{4}

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An equation has the form:

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m=\frac{1}{4}

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6 0
3 years ago
Make a down payment of $1500 and finance the rest of $20000 at 1.9% interest rate, making equal monthly payments for 5 years.
Rudik [331]
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12 * 5 = 60 months 

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7 0
3 years ago
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vivado [14]
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3 years ago
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Me. Dietz is a teacher whose salary is $22,570 for this school year, which has 185 days. In Mr. Dietz school district, substitut
harina [27]

Answer:

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Step-by-step explanation:

Given:

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framing in equation form we get;

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Now we will find Amount less paid to substitute teacher then Mr Dietz.

Amount less paid to substitute teacher then Mr Dietz  can be calculated by subtracting the Amount paid for Substitute teacher per day from Amount paid for per day of Mr. Dietz.

framing in equation form we get;

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Hence School District pays $42 less to substitute teacher than Mr. Dietz.

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