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Jlenok [28]
3 years ago
15

Consider the function f(x) = log8 x. (a) What is the domain of f? (Enter your answer using interval notation.)

Mathematics
1 answer:
stepan [7]3 years ago
3 0

Answer:

The domain of f is equal to x = log8 x.

Step-by-step explanation:

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If you drew a horizontal line on the coordinate plane, what could you say about the y-coordinate for every point on the line?
sattari [20]
It's the y intercept.
If y = a then every point on the line would be (x,a)
The lines slope is 0.  I know that has nothing to do with the question, but it is true and it gives me 3 things to tell you.  
6 0
3 years ago
The weights (to the nearest pound) of some boxes to be shipped are found to be:. Weight 65 68 69 70 71 72 90 95 frequency 1 2 5
Lena [83]
So the mean is 72.97

We need to subtract the mean from each value and square it.
(65-72.97)^2= 63.5209
(68-72.97)^2=24.7009
(69-72.97)^2=15.7609
(70-72.97)^2=8.8209
(71-72.97)^2= 3.8809
(72-72.97)^2=0.9409
(90-72.97)^2=290.0209
(95-72.97)^2=485.3209

Now we add up the new values ( also consider their frequency) and find their mean.
Add the values
63.5209+(2 •24.7009=49.4018)+(5•15.7609=78.8045)+(8•8.8209=70.5672)+(7•3.8809=27.1663)+(3•0.9409=2.8227)+(2•290.0209=580.0418)+(2•485.3209=970.6418)= 1,842.967
Divide by total numburs to find the mean
1,842.967/ 30=61.43223333

The standar deviation is the square root of the mean so is
Square root of 61.43223333=7.837871735
Round to the nearest tenth
Standard Deviation is 7.8



7 0
3 years ago
Write the slope-intercept form of the equation of each line. identify the slopes y-intercept.
iren [92.7K]

Answer:

1. 3,0,y=3x

2. -3/5, 1, y=-3/5x+1

3. -2/3, -4,y=-2/3x-4

4. 0, 4, y=4

5. 1, 5, y=x+5

6. 2, 0, y=2x

7. 4, 5, y=4x+5

8. 3/2, 4, y=3/2x+4

hopefully this helps :)

5 0
2 years ago
Is this a right triangle??? Show work
podryga [215]

Answer:

This is a right angle.

Step-by-step explanation:

As you can see below, the angle specified is 90 degrees. That is a right angle.

6 0
3 years ago
PLEASE HELP!!!1
Anuta_ua [19.1K]
We sketch two triangles, DFE and DGH, as shown below 

Side DF correspond to side DG, the scale factor is 40÷32=1.25

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7 0
3 years ago
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