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3 years ago

Neeed help pleaseeeeee????

Mathematics

2 answers:

Anika [276]3 years ago

5 0

3x=4+2(3-x)

3x=4+6-2x

3x=10-2x

move -2x to the other side

sign changes from -2x t0 +2x

3x+2x=10-2x+2x

Answer:

3x=10-2x

+2x +2x

5x=10

Nana76 [90]3 years ago

4 0

Answer:

The next step would be to distribute 2 into the parenthesis.

Step-by-step explanation:

Distribute 2(3 - x) = 6 -2x

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What is the distance between the points (21 , 13) and (3 , 13) in the coordinate plane?

Oxana [17]

Answer:

$\displaystyle d = 18$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Identify

Point (21, 13)

Point (3, 13)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(3-21)^2+(13-13)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{(-18)^2+(0)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{324+0}$
[√Radical] Add: $\displaystyle d = \sqrt{324}$
[√Radical] Evaluate: $\displaystyle d = 18$

5 0

3 years ago

-7πh = 98π solve for h

ICE Princess25 [194]

Answer:

h = -14

Step-by-step explanation:

-7πh = 98π

⇔ -7h = 98 (Just Divide both sides by π)

⇔ h = 98 ÷ (-7) = -14

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8 months ago

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Bogdan [553]

Answer:

Step-by-step explanation:

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2 years ago

Given b = 4 and c = -5, evaluate b 2 - c 2. 41 -2 -9

LekaFEV [45]

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3 years ago

A section in a stained glass window is shaped like a trapezoid. The top base is 1 centimeter and the bottom base is 3.5 centimet

LUCKY_DIMON [66]

I don't know if it's right but this is what I did. the rounding might be a little different.

$(1 + 3.5) \div 2 \times x = 8.1$
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5 0

3 years ago