Ask question

Ask question

All categories

mihalych1998 [28]

2 years ago

12

Find the circumference. use 3.14 for π r=2 cm c=? c=π d help please

1 answer:

Helga [31]2 years ago

5 0

Answer:

C = 12.56m

Step-by-step explanation:

circumference is the distance around the outside of a circle. The r stands for radius, half way across, from the center(thats the little line on the diagram) "d" stands for diameter. That would be double the radius, bc its all the way across the circle through the center. The formula to find the CIRCUMFERENCE is given, C=pi × d

They told you to use 3.14 for pi. And also the radius is 2, so the diameter is 4

C = pi × d

C = 3.14 × 4

C = 12.56 meters

You might be interested in

Write a function that represents the situation. Let t represent the time in years. You deposit $800 in an account that earns 7%

Anna35 [415]

Answer:

pretty sure it's 56 I could be wrong though

3 0

2 years ago

A student solved 3/x−4=x/7 in six steps, as shown.

Stolb23 [73]

Answer:

Option A.

Step-by-step explanation:

The given equation is

$\dfrac{3}{x-4}=\dfrac{x}{7}$

Step 1: Multiply both sides by (x-4).

$3=\dfrac{x(x-4)}{7}$

Step 2: Multiply both sides by 7.

$21=x(x-4)$

Step 3: Using distributive property.

$21=x^2-4x$

Step 4: Isolate all terms on one side.

$0=x^2-4x-21$

Step 5: Find factors by splitting the middle term.

$0=x^2-7x+3x-21$

$0=x(x-7)+3(x-7)$

$0=(x-7)(x+3)$

Step 6: Using zero product property, we get

$x=-3, x=7$

It means student solved the equation correctly.

Therefore, the correct option is A.

5 0

3 years ago

Read 2 more answers

What number must be added to the expression below to complete the square? x2-5x

kati45 [8]

Answer:

6.25

Step-by-step explanation:

(x-a)^2=x^2-2ax+a^2

2a=5

a=2.5

2.5 ^ 2 = 6.25

3 0

3 years ago

1. Pat made muffins to b/ring to a party! She gave ⅙ of the muffins to her younger brothers. Her dad ate ⅛ of the muffins. What

tia_tia [17]

Answer:

17/24

Step-by-step explanation:

1 - (1/6 + 1/8) = 24/24 = (4/24 + 3/24) = 17/24

6 0

2 years ago

assume that random guesses are made for 9 multiple choice questions on an SAT test, so that there are n=9 trials, each with prob

Orlov [11]

Answer:

though this looks difficult. It's easier than you think. Just not visible until its visible. If I knew the answer, i would have told you... sorry.

8 0

3 years ago