All categories

2 years ago

A circle has a circumference of 3.14 units. What is the diameter of the circle? units 2 Watch a video or use a hint .

Mathematics

1 answer:

Serggg [28]2 years ago

8 0

Answer:

d = 1 unit

General Formulas and Concepts:

Math

Symbol π (pi) - 3.14

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Geometry

Circumference Formula: C = πd

d is diameter

Step-by-step explanation:

Step 1: Define

C = 3.14 units

Step 2: Solve for d

Substitute in variable [Circumference Formula]: $3.14 = \pi d$
[Division Property of Equality] Isolate d: $1 = d$
Rewrite: $\displaystyle d = 1$

You might be interested in

What algebraic property is demonstrated in the equation below? 5(8× - 4) - 10 = 40x - 20 - 10

Nastasia [14]

Distributive Property

5 0

3 years ago

***PLEASE HELP***

Molodets [167]

Given:
250 sheep in a 40-acre pasture.
Number of sheep grazing in each acre.

250/40 = 6.25 or 6 sheep per acre

n = 6
sample proportion: signified by ρ
Sample 1: 4 → 4/6 = 0.67
Sample 2: 1 → 1/6 = 0.17
Sample 3: 9 → 9/6 = 1.50

multiply the sample proportion by 1-ρ
Sample 1: 0.67(1-0.67) = 0.67(0.33) = 0.2211
Sample 2: 0.17(1-0.17) = 0.17(0.83) = 0.1411
Sample 3: 1.50(1-1.5) = 1.5(-0.5) = -0.75

divide the result by n. n = 6
Sample 1: 0.2211/6 = 0.03685
Sample 2: 0.1411/6 = 0.02352
Sample 3: -0.75/6 = -0.125

square root of the quotient to get the standard error.
Sample 1: √0.03685 = 0.1919
Sample 2: √0.02352 = 0.1534
Sample 3: √-0.125 = invalid

z value 95% confidence 1.96.

Sample 1: 1.96 * 0.1919 = 0.3761 or 37.61% margin of error
Sample 2: 1.96 * 0.1534 = 0.3007 or 30.07% margin of error

8 0

3 years ago

The length of a rectangle is four times its width. If the area of the rectangle is 100 in2, find its perimeter.

mamaluj [8]

Answer:

the perimeter is 50 inches squared

Step-by-step explanation:

if the length is 4 times that means the sides are 20 and 5

4 0

3 years ago

Need help with question 3. Dont Understand

Vedmedyk [2.9K]

Answer:

It represents both the positive and the negative square root of 256.

Step-by-step explanation:

16*16=256

-16*-16=256

They are both valid answers.

5 0

3 years ago

Square measures 8 m on each side if each side is written by 1/4 of eight originally the premiere of the new square will be blank

Digiron [165]

Step-by-step explanation:

so, if I understand this correctly, the original square had a side length of 8 m.

now we transform this square into one with side length 1/4×8 = 8/4 = 2 m.

and the questions are what are the perimeter and the area of that new (smaller) square ?

the perimeter of a square is

4× side length = 4×2 = 8 m

the area of a square is

side length ² = 2² = 4 m²

3 0

2 years ago

A circle has a circumference of 3.14 units. What is the diameter of the circle? units 2 Watch a video or use a hint .​

A circle has a circumference of 3.14 units. What is the diameter of the circle? units 2 Watch a video or use a hint .