3 years ago

What is the diameter, radius, r2, and circumference? 3 cm I will give u the brainlest!!!!!

Mathematics

2 answers:

matrenka [14]3 years ago

6 0

Answer:

diameter is 4 and circumference is 12.56

Step-by-step explanation:

lorasvet [3.4K]3 years ago

3 0

Just laying in here and i love watching you guys at the house love watching

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Y_Kistochka [10]

I believe it's A, sorry if it's incorrect. ^-^'

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3 years ago

. A triangle has side lengths of 8, 7, and 14. To the nearest tenth of a degree find the measure of the angle opposite the side

4vir4ik [10]

Given:

The measure of three sides of a triangle are 8, 7 and 14.

To find:

The measure of the angle opposite the side of length 8.

Solution:

According to the Law of Cosine:

$\cos A=\dfrac{b^2+c^2-a^2}{2bc}$

Let a=8, b=7 and c=14, then by using Law of Cosine, we get

$\cos A=\dfrac{7^2+14^2-8^2}{2(7)(14)}$

$\cos A=\dfrac{49+196-64}{196}$

$\cos A=\dfrac{181}{196}$

Taking cos inverse on both sides.

$A=\cos^{-1}\dfrac{181}{196}$

$A=22.561328$

$A\approx 22.6$

Therefore, the measure of the angle opposite the side of length 8 is 22.6 degrees.

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3 years ago

The equation 24x2+25x−47 ax−2 =−8x−3− 53 ax−2 is true for all values of x≠ 2 a , where a is a constant. What is the value of a?

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The correct answer is B) -3

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3 years ago

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After spraying perfume on her neck, Tasha becomes less aware of the scent over time. What property is this describing

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Answer:

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Step-by-step explanation:

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2 years ago

What is the value of x? show work

Alona [7]

2x+38=180
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