3 years ago

Which mathematical property is demonstrated?

Mathematics

1 answer:

Artyom0805 [142]3 years ago

4 0

Commutative property of addition

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Find the length of BC

Ivan

Answer:

13.3650978628

Step-by-step explanation:

Angle A=180-(Angle B+C)=180-117=63

Here,

b=BC, p=AC & AB=12

Using the relation of cos,

cosx=b/h

cos27=BC/15

15cos27=BC

Using a calculator,

BC=13.3650978628

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2 years ago

What is a factor of 21x² + 13x - 20

Tems11 [23]

Answer:

(7x-5)(3x+4)

Step-by-step explanation:

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3 years ago

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Akiko is making a pizza. The radius of the pizza is 19 inches. What is the circumference of the pizza (use 3.14 for pi and round

RideAnS [48]

Answer:

≈119.3

Step-by-step explanation:

The area for circumference is as follows:

$C = 2\pi r\\or\\C = d\pi$

The above equations mean the same thing, because the diameter is just 2 times the radius.

Anyhow, we insert this value into the equation...

$C = 2\pi(19)\\C = 38(3.14)\\C = 119.32\\$

This rounds to:

≈119.3

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3 years ago

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Answer:

It will give you two complex solutions.

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3 years ago