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2 years ago

What is the circumference of a circle that has a radius of 10 in? Use 3.14 for π.

Mathematics

2 answers:

Whitepunk [10]2 years ago

8 0

Step-by-step explanation:

The formula to find the perimeter or circumference of a circle is P=2×π×r.

Step 1: Find the radius. In this case it is 10 in.

Step 2: Multiply the radius by 2 for simplicity. In this case 10×2=20.

Step 3: Multiply the last number by π. In this case, 20×3.14=62.8.

Step 4: You have the answer. Hope this helps!

VladimirAG [237]2 years ago

4 0

The circumference is 62.83in

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Answer:

5x+60 = 360, x = 60

Step-by-step explanation:

Ok, so the key to this problem is to realize that all angles added up in a quadrilateral give you 360 degrees. This means that x+10 + 2x + 2x + 50 = 360. Then we can just simplify to 5x + 60 = 360, 5x = 300, and x = 60.

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2 years ago

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Alinara [238K]

Answer:

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Step-by-step explanation:

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2 years ago

What is the solution(s) to the equation 5a^2 - 44 = 81

Alborosie

Answer:

a=5,a=-5

Step-by-step explanation:

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2 years ago

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Tanya [424]

Answer:

0.44

Step-by-step explanation:

See the picture below.

Remember that the sine is the ratio of the length of the opposite leg to the length of the hypotenuse.

Perhaps you know SOHCAHTOA, where SOH means sine, opposite, hypotenuse.

For angle J, leg LK is the opposite leg.

The hypotenuse of the triangle is the side opposite the right angle, teh angle of 90°, which is angle L, so the hypotenuse is side KJ.

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2 years ago

Use the Pythagorean theorem to determine which of the following give the measures of the legs and hypotenuse of a right triangle

Masteriza [31]

Answer: 3, 4,5 and 17, 15,8

give the measures of the legs and hypotenuse of a right triangle.

Step-by-step explanation:

In order for the measures of the legs and hypotenuse given to form a right angle triangle, they must be Pythagorean triples. A Pythagoras triple is a set of numbers that perfectly satisfy the Pythagorean theorem. The Pythagorean theorem is expressed as

Hypotenuse² = opposite side² + adjacent side². We will apply the theorem to each set of numbers given.

1) 3, 4, 5

5² = 3² + 4² = 9 + 16

25 = 25

It is a Pythagorean triple

2) 4, 11, 14

14² = 11² + 4² = 121 + 16

196 = 137

It is a Pythagorean triple

3) 9, 14, 17

17² = 14² + 9² = 196 + 81

289 = 277

It is not a Pythagorean triple

4) 8, 14, 16

16² = 14² + 8² = 196 + 64

256 = 260

It is not a Pythagorean triple

5) 8, 15 , 17

17² = 15² + 8²

289 = 225 + 64

289 = 289

It is a Pythagorean triple

Therefore, 3, 4,5 and 17, 15,8

give the measures of the legs and hypotenuse of a right triangle.

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3 years ago