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Lady_Fox [76]
3 years ago
7

An 80% confidence interval is found to be (12, 20). What is the margin of error?

Mathematics
1 answer:
Sonja [21]3 years ago
4 0

Answer:4

Step-by-step explanation:

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Simplify the following expressions by combining like terms. 11x + 7 + -3x - 3​
Temka [501]

Hello,

11x + 7 + -3x - 3 = 11x - 3x + 7 - 3 = (11 - 3)x + 4 = 8x + 4

3 0
3 years ago
Read 2 more answers
Which of the Following is a solution to 7x-6y=19<br> (-5,-3)<br> ,(7,5), <br> (-4,0)<br> (1,-2)
Korolek [52]

Answer:

(1,-2)

Step-by-step explanation:

Choose any value for x that is in the domain to plug into the equation.

Choose 0 to substitute in for x to find the ordered pair.

(0, -19/6)

Choose 1 to substitute in for x to find the ordered pair.

Remove parentheses.

y= -19/6 + 7(1)/6

Simplify

y=2

Use the

x and y values to form the ordered pair.

(1,−2)

4 0
3 years ago
Which function has lowest rate of change?
Delvig [45]

Answer:

A: Algebraic Function

Step-by-step explanation:

Algebraic function is given as;

5x – 2y = 15

Since we are dealing with rate of change, let's make y the subject first and find dy/dx.

Thus;

2y = 5x - 15

y = (5x/2) - 15/2

dy/dx = 5/2

dy/dx = 2.5

The verbal function is given as;

Cost of 5 pencils is 15 dollars

Thus, rate of 1 pencil = 15/5 = 3 pencils per dollar

We can see that the lowest rate of change is 2.5 and it is the algebraic function.

8 0
3 years ago
Can someone explain how you would figure this out step by step.
Xelga [282]

Answer:

Step-by-step explanation:

I don’t know if this will help but I hope it does let me know if you get it or not

4 0
2 years ago
In what ways does adding a constant or coefficient to a quadratic equation affect the graph?
erastova [34]
<span>If you are adding a constant, then the graph is either raised or lowered k units.

For example.... If you have the graph of y = x^2 and now you add 3, so your new graph of x^2 + 3, will be the same graph as x^2 but raised vertically 3 units.
 
The graph of x^2 - 7 will be the graph of x^2 lowered vertically 7 units.


I hope my answer has come to your help. God bless and have a nice day ahead!</span>
4 0
3 years ago
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