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3 years ago

PLZ HELP!!!!

Mathematics

1 answer:

Daniel [21]3 years ago

4 0

Answer:

Expression 3x - 3y = 3 (x - y)

Step-by-step explanation:

Expression equal to 3x - 3y = 3 (x-y)

- By taking 3 common from the equation

Eg : If x = 5 , y = 3

3x - 3y = 3 (5) - 3 (3) = 15 - 9 = 6

3 (x - y) = 3 ( 5 - 3 ) = 3 (2) = 6

As both above are equal, the expression equivalency is hence proven .

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What is 5.670 rounded to whole gram

Vitek1552 [10]

Answer:6

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5.670 rounded to whole gram is 6

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4 years ago

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Help please!!!!! I will thanks and medal.

galina1969 [7]

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3 years ago

What is the distance between the points (2, 1) and(6, 7)?

icang [17]

Answer:

$\displaystyle d = 2\sqrt{13}$

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 (2, 1)

Point (6, 7)

Step 2: Find distance d

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

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(6 - 2)^2 + (7 - 1)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{4^2 + 6^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{16 + 36}$
[√Radical] Add: $\displaystyle d = \sqrt{52}$
[√Radical] Simplify: $\displaystyle d = 2\sqrt{13}$

3 0

3 years ago

Can somebody help me find the missing one

aleksklad [387]

The one missing is the fourth choice.

As you can see, the x axis stands for the weight, and the y axis the total cost.

You can see that the point, (1, 4) definitely exists.

So basically it would be 1 pound of cheese for four dollars, since x is weight and y is total cost.

You can see the fourth choice states that it's four dollars for one pound of cheese.

Hope this helped :)

8 0

4 years ago