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Phantasy [73]
3 years ago
15

I really need help ............!!!!!!

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

49 minutes

Step-by-step explanation:

To find the average time the machine was down per day, we need to add up the total time taken and then divide by the number of days. Since there are 5 days, we have:

\frac{50 + 30 + 100 + 25 + 40}{5}

= \frac{245}{5}

= 49

So, the average time per day is 49 minutes.

Hope this helped! :)

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If G(x)=x^2+5x+6, find g(-4)-7
Paraphin [41]
G(x) = (x+2)(x+3), this is from factoring then replace x with -4 and the equation should look like this g(-4)-7= (-4+2)(-4+3)-7= -5, 
6 0
4 years ago
How would i graph the solution set for 1/3x (greater than or equal to) y+2?
Leto [7]
1/3x ≥ y + 2

You’ll have to transform the equation into its slope-intercept form, y = mx + b, so that you could graph the line. Set y to “=“

1/3x = y + 2
Subtract 2 from both sides

1/3x -2 = y + 2- 2

1/3x - 2 = y or y = 1/3x - 2

Next, to graph the solid line, you need at least two points to plot. We can start with the y-intercept, (0, -2). Another point to use is the x-intercept. To solve for the x-intercept, (a, 0), set y = 0:

0 = 1/3x - 2
Add 2 on both sides:

0 + 2 = 1/3x - 2 + 2
2 = 1/3x

Multiply both sides by 3 to solve for x:
2(3) = (3) 1/3x

6 = x

Therefore, the x-intercept = (6,0).

Plot the intercepts on the graph and connect those two points to create line.

Next, to identify which half-plane region to shade, choose a convenient test point (not on the line) to see whether it part of the solution. We could use the point of origin, (0, 0). Substitute its values into the linear inequality:

1/3x ≥ y + 2

1/3(0) ≥ (0) + 2
0 ≥ 2 (false statement). Therefore, you must shade the half-plane region where it doesn’t contain the test point, (0, 0).

Attached is the graph where it shows that the shaded lower half-plane region.

Please mark my answers as the Brainliest if you find my explanations helpful :)

6 0
2 years ago
Hello there! How to find the probability? See picture! Thank you and please show your work!
german

Answer:

  0.8914

Step-by-step explanation:

You want to find the z-values associated with the x-values:

 z = (x -μ)/σ

 z1 = (57 -90)/12 = -2.75

 z2 = (105 -90)/12 = 1.25

Look up these values in a probability table and find the difference of the table values.

 p(z < z1) ≈ 0.00298 . . . . from a table or calculator

 p(z < z2) ≈ 0.89435 . . . . from a table or calculator

p(57 < x < 105) ≈ 0.89435 -0.00298 = 0.89137 ≈ 0.8914

8 0
4 years ago
If f(x)=x^2-81 and g(x)=(x-9)^-1(x 9), find g(x) * f(x)
ycow [4]
Hello,

if x≠9 then

f(x)=x^2-81\\\\&#10;g(x)= \frac{x+9}{x-9} \\\\&#10;&#10;g(x)*f(x)= \dfrac{(x-9)(x+9)(x+9)}{x-9} =(x+9)^2=x^2+18x+81
3 0
3 years ago
Read 2 more answers
In February, Paul's electric bill was three dollars more than one-half his gas bill. If the electric bill was ninety-two dollars
Lostsunrise [7]
Let us assume the gas bill of Paul in February = x dollars
Then
Electric bill of Paul for the month of February = (x/2) + 3
Amount of Electricity bill of Paul for the month of February = $92
then we can write the equation as
(x/2) + 3 = 92
x/2 = 92 - 3
x/2 = 89
x = 89 * 2
   = 178 dollars
So the gas bill of Paul in February is $178. I hope this is the answer you were looking for.
3 0
3 years ago
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