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3 years ago

Find the area of this circle. Use 3.14 to approximate . A = ar2 14 ft A = [ ? ] ft?

Mathematics

1 answer:

scoray [572]3 years ago

3 0

Answer:

A =153.86 ft^2

Step-by-step explanation:

First we need to find the radius

f = d/2 = 14/2 = 7

A = pi r^2

A = 3.14 ( 7)^2

A = 3.14 * 49

A =153.86 ft^2

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What is the value of x, the side length of the smallest square (please show work) Thanks!

Ratling [72]

Answer:

8 cm

Step-by-step explanation:

Ok lets on the biggest square we have 17 cm

17cm is the hypotenuse for the right triangle

The second largest's area is 225 cm^2

Sq root of 225 cm^2, is 15

To find x, lets plug the info we have to the pythagorean theorom

$a^2 + b^2 = c^2\\a^2 + 15^2 = 17^2\\a^2 + 225 = 289\\\\289 - 225 = a^2\\64=a^2\\a = 8 cm$

The side length of the smallest Square is 8 cm

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Given the function f(x) = 3x + 1, what is the value of f(-2/3)? show work

Marta_Voda [28]

Answer:

f(-2/3) = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

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f(-2/3) is x = -2/3

Step 2: Evaluate

Substitute: f(-2/3) = 3(-2/3) + 1
Multiply: f(-2/3) = -2 + 1
Add: f(-2/3) = -1

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