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Anarel [89]
3 years ago
14

Please help, I'm in a desperate situation trying to solve this, thank for your time!

Mathematics
2 answers:
solniwko [45]3 years ago
6 0
The answer is 3.6. Just do subtraction.
meriva3 years ago
5 0

Answer:

A≈232.494

Step-by-step explanation:

the 8 is there to trick you as you can see it says to find the area of the regular pentagon

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Find the product (2x-1)(-x+2)
DaniilM [7]

Answer:

2x^2+4x+x-2

Step-by-step explanation:

use FOIL (first, outside, inside, last)

(2x-1)(-x+2)

2x(-x)=-2x^2

2x(2)=4x

-1(-x)=x

-1(2)=-2

2x^2+4x+x-2

7 0
3 years ago
(08.01)Angela wants to know how many families in her neighborhood plan to attend the parade. She puts all 120 of the neighborhoo
Zolol [24]

Using sampling concepts, the correct option regarding the validity of the inference is given as follows:

B) Yes, this is a valid inference because she took a random sample of the neighborhood.

<h3>What is sampling?</h3>

It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.

For example:

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So I ask, lets say, 1000 randomly selected New York state residents whether they are Buffalo Bills fans, and expand this to the entire population of New York State residents. If I had taken 1000 residents just from Buffalo, it would not be a representative sample.

In this problem, all addresses in the neighborhood are considered, hence a random sample was taken and the correct option is given as follows:

B) Yes, this is a valid inference because she took a random sample of the neighborhood.

More can be learned about sampling concepts at brainly.com/question/25122507

#SPJ1

3 0
1 year ago
Please help I will give brainliest to whoever explains step by step
Evgesh-ka [11]

Answer: In the exact order up to down: 80, 74, 110, 96, 80

Step-by-step explanation:

Do the equation

360=(x-6)+(x+30)+1.2x+x

we can simplify by doing

360=(x-6)+(x+30)+2.2x

=360=x-6+x+30+2.2x

=360=4.2x+24

=336=4.2x

=80=x

x=80

I just started brainly and I want to help more people with their questions please just give a thanks or a rating to keep me going and help more people.

4 0
2 years ago
Can you simplify 3(x+2) = 3x+6 in distributive property
Vanyuwa [196]

Hello XD

3(x+2) = 3x+6

Distributive property

(3)(x)+(3)(2) = 3x+6

3x+ 6 = 3x+6

Now subtract 3x from both sides

3x+6-3x = 3x+6-3x

6=6

Subtract 6 from both sides

6-6 = 6-6

0=0

In this case the answer is : All real numbers are solution

3 0
2 years ago
Read 2 more answers
- Why is R2 important? in multiple regression ​
andriy [413]

Answer:

R-squared is a statistical measure of how close the data are to the fitted regression line.

Step-by-step explanation:

It is also known as the coefficient of determination, or the coefficient of multiple determination for multiple regression. ... 100% indicates that the model explains all the variability of the response data around its mean.

4 0
3 years ago
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