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Mrrafil [7]
3 years ago
7

HELP I DONT UNDERSTAND PLS HELPP :(

Mathematics
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

H

Step-by-step explanation:

The table uses the domain -0.2 twice, but got different ranges both times, therefore meaning that this is not a function.

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Part 1
Korvikt [17]

Answer:

no saboooo99999997

Step-by-step explanation:

becayzw kwk2kudhe

whsyhwbw

wiauy1y133

6 0
3 years ago
Tell me how to do it and why please
matrenka [14]

Answer:

It would take them 6.667 minutes to paint 50 square feet together.

Step-by-step explanation:

This is a classic work problem.  If Sam can do the job in 10 minutes, she can get done 1/10 of the job in one minute.  If you can do the job in 5 minutes, you can 1/5 of the job done in one minute.  To find out how many minutes it will take them together to paint 25 square feet, set the addition of their times equal to 1/x:

\frac{1}{10}+\frac{1}{5}=\frac{1}{x}

x is how long it takes them to get the job done together.  Find the common denominator and multiply it through be everything to get rid of the denominators altogether.  That denominator is 10x:

(10x)\frac{1}{10}+(10x)\frac{1}{5}=(10x)\frac{1}{x}

Simplify to get the simple equation x + 2x = 10 and 3x = 10.  That means that x=3 1/3.  That's how long it takes to do 25 square feet.  Double that time for 50 square feet.

8 0
3 years ago
Which pair of figures has the same number of faces as vertices
ira [324]

Answer:

1.triangular prism and triangular pyramid

2. triangular prism and rectangular prism

3. rectangular pyramid and triangular pyramid

4. rectangular pyramid and rectangular prism

3 0
3 years ago
If Rita receives $45.34 interest for a deposit earning 4% simple interest for 160 days, what is the amount of her deposit? (Roun
vovangra [49]

Answer:

6.4

Step-by-step explanation:

5 0
3 years ago
Which of the following is an advantage of using systematic random sampling?
bekas [8.4K]

This is a question that asks about the advantages of a systematic random sampling. Thus, we first take a look at the types of sampling, and then we see the advantage of systematic random sampling.

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

Systematic:

One of the bigger advantages is that the systematic sampling eliminate clusters, which means that the last option is wrong.

Inadvertently missing patterns is a problem in systematic sampling, and not an advantage, thus the third option is also wrong.

It also does not reduce sampling variability, thus the first option is wrong.

From this, it can be concluded that the correct option is:

Systematic random sampling does not require a finite population size.

For another example of systematic random sampling, you can check brainly.com/question/21100042

8 0
2 years ago
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