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notka56 [123]
3 years ago
10

Simplify -[-5x2 - (-5x2 + 6)] - [-(-6x2 - (4 + 4x2)) - 8x2]

Mathematics
1 answer:
MArishka [77]3 years ago
8 0
Answer: 2 - 2x^{2}

Explanation:
PEMDAS
 -[-5x^{2} - (-5x^{2} + 6)] - [-(-6x^{2} - (4 + 4x^{2})) - 8x^{2}<span>]
Parentheses and Brackets
</span> -[-5x^{2} - (-5x^{2} + 6)] - [-(-6x^{2} - (4 + 4x^{2})) - 8x^{2}]
 -[-5x^{2} + 5x^{2} - 6] - [-(-6x^{2} - 4 - 4x^{2}) - 8x^{2}]
 -[-5x^{2} + 5x^{2} - 6] - [6x^{2} + 4 + 4x^{2} - 8x^{2}]
 5x^{2} - 5x^{2} + 6 - [6x^{2} + 4 + 4x^{2} - 8x^{2}] 
5x^{2} - 5x^{2} + 6 - 6x^{2} - 4 - 4x^{2} + 8x^{2}

Addition and Subtraction of like terms
5x^{2} - 5x^{2}
 + 6 - 6x^{2} - 4 - 4x^{2} + 8x^{2}
6 - 6x^{2} - 4 - 4x^{2} + 8x^{2}
6 - 4 - 6x^{2} - 4x^{2} + 8x^{2}
2 - 10x^{2} + 8x^{2} 
2 - 2x^{2}
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This package of sliced cheese costs $2.97, How much would a package with 18 slices cost at the same price per slice
Mice21 [21]

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Step-by-step explanation:

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How do you graph this equation -2/3y= -6
hichkok12 [17]

Answer:

First, you want to get y by itself, so you will multiply by the reciprocal

( 3 /−2 )-2/-3 : (3/-2)-6

y=9 should be your answer. since there is no x value or "slope" your line will be straight.

Step-by-step explanation:

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3 0
3 years ago
Help me out please.......
GarryVolchara [31]
If the slope of the red line is one, the slope of the green line is also one. That's because parallel lines have the same slope. 
7 0
3 years ago
Read 2 more answers
How do I do this? Please provide steps.
matrenka [14]

Answer:

3/5

Step-by-step explanation:

Soh Cah Toa

In some trigonometry classes, this acronym is very important to solving questions like this.

Why?

It tells us the right triangle-definition of these trigonometry functions.

We have that cosine of an angle is equal to tge side that is adjacent to it over the hypotenuse.

So here we are asked to find cos(B).

Lets look at triangle respect to the angle B

The measurement of the side that is opposite is 64.

The measurement of the side that is adjacent is 48.

The measurement of the hypotenuse is 80.

So cos(B)=48/80.

Let's reduce. 48 and 80 have a common factor of 8 so divide numerator and dexter by 8. This gives us:

cos(B)=6/10.

One more step in reducing. Both factors are even so cos(B)=3/5.

6 0
3 years ago
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