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2 years ago

Need help with this.

Mathematics

1 answer:

givi [52]2 years ago

5 0

Answer:

Step-by-step explanation:

You are supposed to pull out the common factor and put it outside the brackets.

42: 6 * 7

54: 6 * 9

So the answer is

6(9 + 7)

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Which expression is equivalent to the given expression?

I am Lyosha [343]

Answer:

C. - 4x^2 + 5x - 4

Step-by-step explanation:

just expand the equation and you'll get C

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Which number is a rational number 49. 9/2 13/16 34

s2008m [1.1K]

Answer:
9/2

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Who is taller 180 cm or 5ft 8in.

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Find the distance between (4,6) and (-2, -2)

Nataly [62]

Answer:

$\displaystyle d = 10$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra II

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

Step-by-step explanation:

Step 1: Define

Point (4, 6)

Point (-2, -2)

Step 2: Find distance d

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

Substitute [DF]: $\displaystyle d = \sqrt{(-2-4)^2+(-2-6)^2}$
Subtract: $\displaystyle d = \sqrt{(-6)^2+(-8)^2}$
Exponents: $\displaystyle d = \sqrt{36+64}$
Add: $\displaystyle d = \sqrt{100}$
Evaluate: $\displaystyle d = 10$

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2 years ago

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What’s the proof for this

KIM [24]

Well... Basically, you should prove this by SSS property(side-side-side). It's fair to say that the length of a side is equal to itself so The line that cuts through the rectangle is a side for both rectangles. Thus because of the given, all the sides of the triangles are equal to one another. This is a very important trick for geometry(I remember using it a lot).
Hope this helps!

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3 years ago