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melisa1 [442]
3 years ago
7

The solution for x2+2x+8<0

Mathematics
2 answers:
Tema [17]3 years ago
7 0
Answer for this question is the zeros are greater than -4 and 2
ziro4ka [17]3 years ago
7 0

Answer:

The answer is indeed the empty set, just answered the question :)

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Determine whether the statement is true or false. If it is​ false, rewrite it as a true statement. Using a systematic sample gua
tekilochka [14]

Answer:

1. False.

II. False.

III. True.

Step-by-step explanation:

In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.

There are various types of sampling used by researchers and these are;

a. Random sampling.

b. Systematic sampling.

c. Stratified sampling.

d. Cluster sampling.

e. Opportunity or convenience sampling.

1. False: Using a systematic sample guarantees that members of each group within a population will be sampled. It is a stratified sample that does.

A systematic sampling is a type of probability sampling method which involves the researcher selecting or collecting data from a larger population.

Under systematic sampling method, samples are selected from an ordered (fixed) sample population at periodic interval.

2. False: Using a cluster sample guarantees that members of each group within a population will be sampled. It is a stratified sample that does.

3. True: Using a stratified sample guarantees that members of each group within a population will be sampled.

In Statistics, Stratified random sampling can be defined as a method of sampling that involves dividing a population into smaller groups known as strata.

In stratified random sampling, the strata are formed based on member's shared characteristics (e.g female or male, occupation, education) or attribute (e.g black or white).

5 0
3 years ago
Read 2 more answers
Whats the slope of the line shown in the graph?
Reil [10]

Answer:

3/2

Step-by-step explanation:

I know this answer is correct, because I did it on edge.

6 0
3 years ago
2+3x7-32x64-8+764x33398x986+12
Serggg [28]

2+3x7-32x64-8+764x33398x986+12=

25158844971

4 0
3 years ago
Solve this eqution with work please also show work<br> solve for x and y<br> x=-y+5<br> y=-3x+3
ExtremeBDS [4]
<span>The answer is x=<span>−<span><span>1<span> and </span></span>y</span></span></span>=<span>6. You can solve it using a graph, substitution, or elimination. </span>
7 0
3 years ago
Read 2 more answers
These Questions are confused me a lot help if you could I really appreciate it thank you
matrenka [14]
<h3><em><u>Answers With Steps:</u></em></h3><h3>Question 1:</h3>

For the first problem, understand that you are solving for the area of a circle. The equation for the area of a circle is pi r². By using the leash length as the radius (r), you can get the answer. (The leash length is 3 meters long.)

<em>Question 1 Steps:</em>

pi 3² --->  pi * 9 ---> ≈28.27

<em>Question 1 Answer:</em>

It would have about 28.27 meters² of playable space.

<h3>Question 2:</h3>

For the second problem, it would be much the same as to the first question. There is the same objective to find the area of the circle. Along with that, it gives us a length to work with. This time it is the sprinkler's reach, which would be the radius, or "r" in the equation.

<em>Question 2 Steps:</em>

pi 5² ---> pi * 25 ---> ≈78.54

<em>Question 2 Answer:</em>

The sprinkler would have about 78.54 feet² of space that it can reach.

4 0
3 years ago
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