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Delvig [45]
3 years ago
14

HELPP!! Can someone tell me what this expanded form is as a decimal??

Mathematics
1 answer:
Hatshy [7]3 years ago
3 0
196.88

Hope this helps!
Brainliest is much appreciated!
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The weights of 5 girls are 70 pounds, 68 pounds, 85 pounds, 62 pounds, and 70 pounds. Nina finds measures of center and measures
baherus [9]

Answer:

C and D

Step-by-step explanation:

4 0
4 years ago
Explain what the following statement means: Polynomials are closed under the operations of addition and subtraction. Provide one
kirza4 [7]
1. Polynomials are closed under the operations of addition and substraction mean that:

If we add two polynomials, the result is still a polynomial (so still in the set of polynomials)

Also, If we subtract 2 polynomials, the result is a polynomial.

2. Example: given the polynomials :

M(x)= 3x^{2}+5x-1 and N(x)=-6 x^{4}+9 x^{3}+ x^{2} -2x-1

Addition example: 

M(x)+N(x)=(3x^{2}+5x-1)+(-6 x^{4}+9 x^{3}+ x^{2} -2x-1)=

-6 x^{4}+9 x^{3}+x^{2} +3x^{2}-2x+5x-1-1=-6 x^{4}+9 x^{3}+4x^{2}x-2


Subtraction example: 

N(x)-M(x)=(-6 x^{4}+9 x^{3}+ x^{2} -2x-1)-(3x^{2}+5x-1)

=-6 x^{4}+9 x^{3}+ x^{2} -2x-1-3x^{2}-5x+1=
=-6 x^{4}+9 x^{3}+ x^{2} -3x^{2}-2x-5x-1+1=-6 x^{4}+9 x^{3}-2x^{2}-x

So both M(x)+N(x) and N(x)-M(x) are polynomials
7 0
4 years ago
Read 2 more answers
Please help on these questions and explain please!!
Sloan [31]
The one in the middle is 12 for the median = 8
8 0
3 years ago
Read 2 more answers
Heeeeeeelp pleasee pleasee
natima [27]
I'm going to convert all the values given to you in percentages, so hopefully you should be able to see the correct answer a little clearer. :)

Debbie said that 21/50 drink coffee in the morning. 21/50 can also be written as 42/100, and now that it's out of 100, it's basically a percentage. (42%).

Allen said that 45% of people drink coffee in the morning. His value is already written as a percentage, so we won't do anything with it.

Benny says that 0.495 of the people he surveyed drink coffee in the morning. 0.495 is the same as 49.5% (multiply it by 100 to get it in a percentage).

So, in Debbie's survey, 42% of people drink coffee.
In Allen's survey, 45% of people drink coffee.
In Benny's survey, 49.5% of people drink coffee.

Therefore, the answer is Benny's survey. :)
8 0
4 years ago
Will give brainliest to whoever answers right first
oksian1 [2.3K]

Answer:

0.5x+20=0.25x+30, m=40

Step-by-step explanation:

Blue: y=0.5x+20

Red: y=0.25+30

We’re looking for where the y (cost) is equal, so we can set the two equations to each other:

Isolate x:

0.5x+20=0.25x+30

0.5x+20-20=0.25x+30-20

0.5x=0.25x+10

0.5x-0.25x=0.25x+10-0.25x

0.25x=10

x=40

m= 40

7 0
3 years ago
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