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3 years ago

I need help please and thank you

Mathematics

1 answer:

Simora [160]3 years ago

7 0

Answer:

C=37.68

Step-by-step explanation:

The radius is 6ft.

The diameter is 2x of the radius.

6*2 = 12 = diameter

Now, we can plug in 12 in the equation C= 3.14d

C=3.14*12

C=37.68

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If the average (arithmetic mean) of 2, 7, and x is 12, what is the value of x?

posledela

Answer:

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3 years ago

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Step-by-step explanation:

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4 years ago

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

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Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

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Therefore, the length of b is 21.64 and option B is the correct choice.

6 0

3 years ago

PLEASE HELP

Anastasy [175]

Answer:

the answer is 67 coins are not Nickels

Step-by-step explanation:

29+24+16=67 so there is 27 Nickels in the jar

4 0

3 years ago

Can somebody please tell me if it’s right? i’ll mark u the brainliest

Nastasia [14]

Answer:

Yes, you are correct.

Step-by-step explanation:

You are substituting the measure of angle x as the measure of angle a since they are congruent to each other.

8 0

3 years ago