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3 years ago

A circle has a circumstance of 22cm what’s the radius using pi

Mathematics

1 answer:

atroni [7]3 years ago

7 0

Answer:

3.50

Step-by-step explanation:

C = 2πr

C = πd

In this case we are using C = 2πr

C = 2πr

22 = 2 x 3.14 x r

22 = 6.28 x r

22/6.28 = 6.28r/6.28

3.503184713375796178343949044585987261 = r

But estimated is 3.50

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Answer:

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General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Simple Interest Rate Formula: $\displaystyle A = P(1 + r)^t$

P is principle amount
r is rate
t is time (in years)

Step-by-step explanation:

Step 1: Define

Identify variables

P = 7300

r = 3% = 0.03

t = 10

Step 2: Solve for A

Substitute in variables [Simple Interest Rate Formula]: $\displaystyle A = 7300(1 + 0.03)^{10}$
(Parenthesis) Add: $\displaystyle A = 7300(1.03)^{10}$
Evaluate exponents: $\displaystyle A = 7300(1.34392)$
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