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Salsk061 [2.6K]
3 years ago
6

The reservoir dropped 6 feet during a long dry spell and then rose 4, feet following

Mathematics
1 answer:
vitfil [10]3 years ago
6 0

Answer:

Its c

Step-by-step explanation:

You might be interested in
Solve for x- <br> 6x^2 + 36x + 54 = 0
lions [1.4K]

Answer:

-3

Step-by-step explanation:

6x^2+36x+54=0

First, you can factor out a 6:

6(x^2+6x+9)=0

Next, you can factor the quadratic:

6(x+3)^2=0

Since the only value of x that could set this equation equal to 0 is -3, that is the answer. Hope this helps!

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
Carmen represents the equation y=x^2+1 using a graph. She says her graph shows there is more than one input for almost every out
Korvikt [17]

No - It is a function.


A relation which is not a function has more than 1 output for an input.

7 0
3 years ago
I have a F in this class may someone help me..?
Bess [88]

Answer:

x = -10

Step-by-step explanation:

9 x -10 = -90

5 0
3 years ago
Read 2 more answers
Can anyone tell me where i can get the answers for edge2020 pls i am really behind
Art [367]

I use edge also most of the answers come for this app all u have to do is copy and paste your answer hopefully this helps

8 0
3 years ago
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