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Nitella [24]
3 years ago
13

A population has a standard deviation of 22. What is the standard error of the

Mathematics
1 answer:
KonstantinChe [14]3 years ago
3 0

Answer:

2.2

Step-by-step explanation:

Find square root of sample size then divid it by your standard deviation

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PLEASE HELP URGENT!!!<br><br> Answer only 28.
disa [49]

Answer:

-2h -16k

Step-by-step explanation:

-2(h+8k)

Distribute

-2h -2 *8k

-2h   -16k

They failed to distribute the minus sign as well as the 2            

4 0
3 years ago
Which liner equality will not have a shared solution set with the graphed liner inequality
Morgarella [4.7K]

The linear inequality wthat will not have a shared solution set with the graphed linear inequality is C. y > 5/3x + 2.

<h3>How to illustrate the information?</h3>

It should be noted that the graph shows the shaded area as y < 5/3x + 1.. The slope of the line will be 5/3.

The two parallel lines are the same. The graph of the inequality is also attached.

The complete question is:

Which linear inequality will not have a shared solution set with the graphed linear inequality?

A. y < 5/3x – 2

B. y < -5/3x + 1

C. y > 5/3x + 2

D. y > -5/3x + 2

Learn more about inequalities on:

brainly.com/question/7542830

#SPJ1

7 0
2 years ago
The length of each side of an equilateral triangle is increased by 5 inches, so the perimeter is now 60 inches. Write and solve
AfilCa [17]

Answer:

The original length of each side of the equilateral triangle = x =15 inches

Step-by-step explanation:

Let Original length of side of equilateral triangle = x

If it is increased by 5 inches, the length will become = x+5

Since in equilateral triangle all the ides have same length so,

New Length of side 1 = x+5

New of side 2 = x+5

New Length of side 3 = x+5

Perimeter of triangle = 60 inches

We need to find the value of x

The formula used is: Perimeter=Length \ of \ side \ 1 \ + Length \ of \ side \ 2 \ + Length \ of \ side \ 3

Putting values in formula and finding x

Perimeter=Length \ of \ side \ 1 \ + Length \ of \ side \ 2 \ + Length \ of \ side \ 3\\60=x+5+x+5+x+5\\60=3x+15\\60-15=3x\\45=3x\\x=\frac{45}{3}\\x=15

So, the original length of each side of the equilateral triangle = x =15 inches

6 0
3 years ago
Ben and Susan are truck drivers who start at the same location. Ben drives 300 miles due west and Susan drives 160 miles due sou
Paul [167]

Answer:

Ben and Susan will be 340 miles apart

Step by Step Solution

Step 1: We plot the problem on a graph to visualize the problem

Step 2: We notice that the problem creates a right triangle with the distance Ben and Susan travel as the legs of the right triangle

Step 3: We can use the Pythagorean Theorem: a²+b²=c² to solve the distance between Ben and Susan

Step 4: We enter the numbers into the formula

a² + b² = c²

300² + 160² = c²

90000 + 25600 = c²

115600 = c² *square root both sides

c = 340

Therefore Ben and Susan are 340 miles apart

8 0
3 years ago
Plzz help meeee plzzzz help
ruslelena [56]

Answer: A. 20%

Step-by-step explanation:

First, to find the total number of teachers, we can add 25+32+18+5+20=100

Next, we divide the number of teachers in 2014 (20) by the total number of teachers (100) as follows:

20 ÷ 100 = 0.2

Finally, to make 0.2 a percentage, we can multiply 0.2 X 100 = 20

Therefore, the correct answer is A.

8 0
3 years ago
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