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4 years ago

70

Mathematics

2 answers:

stealth61 [152]4 years ago

5 0

Answer:

Step-by-step explanation:

Molodets [167]4 years ago

3 0

Check the picture below.

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What are the steps for etc? x - 14.6 = 8.02

Crank

Answer:first add 14.6 to both side of the equation and that will give you what is x equal to

Step-by-step explanation:am just smart

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3 years ago

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Find the area of the regular polygon.

Alenkasestr [34]

Answer:

5.5

Step-by-step explanation:

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3 years ago

Write the formula for the perimeter of a rectangle.Then substitute 12in for the length and 6in for the width solve the equation

Anastaziya [24]

Answer:

Step-by-step explanation:

Let L represent the Length of the rectangle.

Let W represent the width of the rectangle.

The formula for determining the perimeter of a rectangle is expressed as

Perimeter = 2(L + W)

Then substitute 12 in for the length and 6in for the width. It becomes.

Perimeter = 2(12 + 6).

Perimeter =2 × 18 = 36

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3 years ago

Solve for 7/2x+7/9x=−17+2/56

kati45 [8]

Answer:

7/2x+7/9x-(-17+25/6)=0

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3 years ago

What is the solution of the equation when solved using the quadratic formula?<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B

Artemon [7]

Answer:

$x=\pm2i\sqrt{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Algebra II

Imaginary Numbers: √-1 = i

Step-by-step explanation:

Step 1: Define Equation

x² + 20 = 0

Step 2: Identify Variables

a = 1

b = 0

c = 20

Step 3: Find roots x

Substitute: $x=\frac{-0\pm\sqrt{0^2-4(1)(20)} }{2(1)}$
Exponents: $x=\frac{-0\pm\sqrt{0-4(1)(20)} }{2(1)}$
Multiply: $x=\frac{-0\pm\sqrt{0-80} }{2}$
Subtract: $x=\frac{\pm\sqrt{-80} }{2}$
Factor: $x=\frac{\pm\sqrt{-1} \sqrt{80} }{2}$
Simplify: $x=\frac{\pm4i\sqrt{5} }{2}$
Divide: $x=\pm2i\sqrt{5}$

6 0

2 years ago