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2 years ago

The diameter of a circle is 2 kilometers. What is the circle's circumference? d=2 km Use 3.14 for . kilometers?

Mathematics

1 answer:

Ksenya-84 [330]2 years ago

3 0

Answer:

6.28km

Step-by-step explanation:

C=314/100×2

I think that the answer is 6.28km

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5b +20y<br> A. 5(b+4y)<br> B. 5(4y+b)<br> C. 2(b+10y)

enot [183]

Answer:

a once again it is easy the answer is A

Step-by-step explanation:

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3 years ago

Read 2 more answers

When I double my number, subtract three, subtract my number, and add four, I get my number plus two. What is my number?

marishachu [46]

Answer:

Any real number

Step-by-step explanation:

Let your no.= x

double the number=2x

add 4 = 2x+4

subtract same number=2x+4-x

subtract 3=2x+4-x-3

get number plus 1=x+1

so equation we get

2x+4-x-3=x+1

x+1=x+1

x=x

it means x is equal to all real number

So your number can be any real number

7 0

2 years ago

In a rock-paper-scissors game, a winner gets 5 points and a loser gets 2 points. After a man played this game 20 times, his tota

aleksandr82 [10.1K]

Answer:

The man wins 9 times and looses 11 times in the rock - paper-scissor game.

Step-by-step explanation:

Let us assume that in the game:

Number of times man wins the games = x times

Number of times man loses the games = y times

Total number of attempts = 20

Points after winning = 5

Points after loosing = 2

Now, according to the question:

x + y =20

and 5 x + 2 y = 67

Now, from (1) y = 20-x, put in (2)

5x + 2y = 67 ⇒ 5x + 2(20 -x) = 67

or, 5x -2x = 67 - 40

or, 3x = 27

⇒ x = 27/3 = 9

then y = 20 - x = 20 - 9 = 11

⇒ x = 9 and y = 11 is the solution of the given system.

Hence, the man wins 9 times and looses 11 times in the rock - paper-scissor game.

3 0

3 years ago

Given the figure. Find AC.

Angelina_Jolie [31]

Image is missing, so i have attached it.

Answer:

AC = 10sin 40°

Step-by-step explanation:

From the diagram attached, using terms in trigonometric ratio, AC is the opposite side, BC is the adjacent side and AB is the hypotenuse.

Thus, since we want to find AC;

We know that in trigonometric ratios; opposite/hypotenuse = sin θ

In the diagram, θ = 40° and AB = 10

Thus,

AC/10 = sin 40°

Multiply both sides by 10 to get;

AC = 10sin 40°

7 0

3 years ago

Determine if the triangles are congruent by HL, SAS, SSS, AAS, or

Tom [10]

Asa. the side is in the middle of the angles

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3 years ago

The diameter of a circle is 2 kilometers. What is the circle's circumference? d=2 km Use 3.14 for ​. kilometers?

The diameter of a circle is 2 kilometers. What is the circle's circumference? d=2 km Use 3.14 for . kilometers?