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3 years ago

Look at the image of a composite figure. What polygon shapes form this composite figure?

Mathematics

1 answer:

Sliva [168]3 years ago

8 0

A triangle and a rectangle are combined to create the figure.

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Brent is designing a poster that has an area of 1 sq.ft. He is going to paste a photo collage on a section of the poster that is

ad-work [718]

Answer:54 th

Step-by-step explanation:

Given

Poster has an area of $A=1\ ft^2$

Size of photo is $\frac{1}{3}\ ft\times \frac{3}{5}\ ft$

and we know

$1\ ft\ \text{is equal to}\ 0.3048\ m$

so $\frac{1}{3}\ ft$ is $0.1016\ m$

$\frac{3}{5}\ ft$ is $0.1828\ m$

So area of photo is

$a=0.1016\times 0.1828$

$a=0.01858\ m^2$

ratio of area of photo and poster is

$\Rightarrow \frac{a}{A}=\frac{0.01858}{1}\approx \frac{1}{53.819}\approx \frac{1}{54}$

So photo will acquire $54^{th}$ Part of poster

7 0

4 years ago

What conclusion can be determined from the dot plot below?

Mariulka [41]

The answer is D because the median is 4, the mean is 4, and the range is 4

4 0

4 years ago

Read 2 more answers

Based on the markings, EXPLAIN why each<br> figure is or is not be a parallelogram.

Leviafan [203]

You need two // sides. Thus this figure doesnt show that

3 0

4 years ago

I need help On these 8 questions that are blank

Ostrovityanka [42]

Answer:

X = 5

Step-by-step explanation:

3x + 12 + 9x = 72

okay hopefully i can explain so when your doing this combine like terms so

3x + 9x = 12x

12x + 12 = 72

then you would subtract both sides by 12

+12 = subtract x+12=2

- 12 = add x-12=2

there just flipped so in this case i would subtract 12

12x + ( 12-12) = ( 72-12 )

so 12-12 = 0 and 72-12 is equal to 60

12x = 60

the divide on both sides l but leave the x alone so its just 60 divided by 12 wich is 5

so X = 5

hope this helps with ur homework a little btw go back and redo ur other awnsers with this new concept hope it helps

7 0

4 years ago

In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be s

Sladkaya [172]

Answer:

The minimum sample size required is 5,499 computer users.

The major obstacle is that it is a big sample size if it is a small organization wanting to perform it.

Step-by-step explanation:

We need to calculate a sample size in order to have 95% confidence interval with 12 minutes of witdth.

So, we have that the difference between the upper limit and the lower limit is 12:

$UL-LL=12$

$(\mu+z*\sigma/\sqrt{n})-(\mu-z*\sigma/\sqrt{n})=12\\\\2z\sigma/\sqrt{n}=12\\\\\sqrt{n}=(1/6)*z\sigma\\\\n=(1/36)z^2\sigma^2$

For a 95% CI, the value of z is 1.96. The standard deviation is 227.

$n=z^2\sigma^2/36=(1.96)^2*(227)^2/36=3.8416*51,529/36=5498.72\\\\n=5499$

The minimum sample size required is 5,499 computer users.

6 0

3 years ago