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ankoles [38]
3 years ago
9

Simplify 8 + 2(10 – r). 

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
4 0
8+20-2r which is equal to 28-2r so it is (B)
balu736 [363]3 years ago
3 0

Hi!

8 + 2(10 - r) = 8 + 20 - 2r = 28 - 2r

The correct answer is B. 28 - 2r

Hope this helps!

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Which measure of center would you use to describe a data set with no extreme values and no big gaps?
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Answer:

The median

Step-by-step explanation:

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3 0
3 years ago
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sasho [114]
Answer is 54^2.

since there are triangles in this one, it is easier to do this. all you have to do is make boxes in and since there are angles, outside the lines. like this picture.

the orange is 1
red and dotted is 2
blue is 3
purple is 4(a regular box which should be easy to count.

all you have to do is add up all the boxes within the boundaries.
boundary 1: 12
boundary 2: 18
boundary 3: 6
boundary 4: 36

now when the boundary has a triangle in it (1, 2, & 3) divide the number you got in half or 2.
boundary 1: 6
boundary 2: 9
boundary 3: 3

the ractangle box doesn't not get divided.
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boundary 2: 9
boundary 3: 3
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add all the numbers you got now for each boundary and that would be your area squared.

6+9+3+36=54^2

so your final answer is 54^2.

i hope this helps you.

3 0
3 years ago
PLZ HURRY!!!!!!!!!!!!!<br> Simplify. <br> −4x^2(5x^4−3x^2+x−2)
Simora [160]

\bold{Answer}

\boxed{\bold{-20x^6+12x^4-4x^3+8x^2}}

\bold{Explanation}

  • \bold{Simplify: \ -4x^2\left(5x^4-3x^2+x-2\right)}

\bold{------------------}

  • \bold{Distribute \ Parenthesis}

\bold{\left(-4x^2\right)\cdot \:5x^4+\left(-4x^2\right)\left(-3x^2\right)+\left(-4x^2\right)x+\left(-4x^2\right)\left(-2\right)}

  • \bold{Apply \ Addition \ / \ Subtraction \ Rules: \ +\left(-a\right)=-a,\:\:\left(-a\right)\left(-b\right)=ab}

\bold{-4\cdot \:5x^4x^2+4\cdot \:3x^2x^2-4x^2x+4\cdot \:2x^2}

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\bold{-20x^6+12x^4-4x^3+8x^2}

\boxed{\bold{Eclipsed}}

5 0
3 years ago
A box of cereal is 13 ounces. About how many grams is it?
DaniilM [7]

1 ounce = 28.3495 grams

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 round answer as needed

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It took 2 hours longer

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