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3 years ago

When adding integers with the same sign, you add and ___________.

Mathematics

1 answer:

rodikova [14]3 years ago

5 0

Answer:

Step-by-step explanation:

change the sign

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12) Add the fractions, and simplify if possible.<br><br> (y+7)/(y^2-y-12) - 2/(y^2-9)

lianna [129]

Answer:

$\dfrac{y^2+2y-13}{(y-4)(y+3)(y-3)}$

Step-by-step explanation:

Given the expression

$\dfrac{y+7}{y^2-y-12}-\dfrac{2}{y^2-9}$

First, factor each denominator:

1. $y^2-y-12=y^2-4y+3y-12=y(y-4)+3(y-4)=(y-4)(y+3)$

2. $y^2-9=(y-3)(y+3)$

Now the expression is

$\dfrac{y+7}{(y-4)(y+3)}-\dfrac{2}{(y-3)(y+3)}$

Now, multiply the first numerator by (y-3) and the second by (y-4) and write the result as a fraction with denominator $(y-4)(y+3)(y-3):$

$\dfrac{(y+7)(y-3)-2(y-4)}{(y-4)(y+3)(y-3)}=\dfrac{y^2-3y+7y-21-2y+8}{(y-4)(y+3)(y-3)}=\dfrac{y^2+2y-13}{(y-4)(y+3)(y-3)}$

This fraction cannot be simplified more.

3 0

3 years ago

Write 295 in expanded form

ki77a [65]

200+90+5 is the answer

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3 years ago

Read 2 more answers

teri is making ribbons to give to her friends. Her budget is limited, and she has some constraints on the number of bracelets sh

Tju [1.3M]

Step-by-step explanation:

not a solution

(4,3) / (3,10)

solution

)4,-3)...........(2,10)

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3 years ago

Shapes 1 and 2 are similar but not congruent

Nadya [2.5K]

Answer:

Can i see the shapes ?

Step-by-step explanation:

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3 years ago

A rotation is a transformation where an object move

ICE Princess25 [194]

Let's rephrase this:

Here:

There are 3 geometric transformations:

1. Rotation

Shapes are rotated or turned around an axis.

2. Reflection

Shapes are flipped across an imaginary line to make mirror images.

3. Translation

Shapes are slid across the plane.

7 0

2 years ago