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zheka24 [161]
3 years ago
7

The monthly utility bills in a city have a mean of $70 and a standard deviation of $8. Find the s-scores that correspond to util

ity bills of $60, $71 and $9. What can you conclude
Z-Score for:
$60:
$71:
$92:
Mathematics
2 answers:
Ulleksa [173]3 years ago
8 0

92 because I'm really good at math

Morgarella [4.7K]3 years ago
3 0

Answer:

here

Step-by-step explanation:

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Which graph represents the solution to the given system ? Y=- 6X - 2Y +2=- 6X
Nonamiya [84]

Answer: The graph is attached.

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

Given the first equation:

y=- 6x - 2

You can identify that:

m=-6\\b=-2

 By definition, the line intersects the x-axis when y=0. Then, subsituting this value into the equation and solving for "x", you get that the x-intercept is:

0=- 6x - 2\\\\2=-6x\\\\x=-\frac{1}{3}\\\\x=-0.333

Now you can graph it.

Solve for "y" from the second equation:

y +2=- 6x\\\\y=-6x-2

 You can identify that:

m=-6\\b=-2

Notice that the slopes and the y-intercepts of the first line and the second line are equal; this means that they are exactly the same line and the System of equations  has<u> Infinitely many solutions.</u>

See the graph attached.

4 0
3 years ago
You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site
tatiyna

Answer:

54.6 hours

Step-by-step explanation:

65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.

Hope this helps!

8 0
3 years ago
What is the volume of the cone to the nearest tenth?
Kisachek [45]

Answer:

366.5cm³

Step-by-step explanation:

1. Determine the height and radius of cone.

2. Using the formula for the volume of a cone input where there is an h and r.

3.Where it says Area of base, it is talking about the circular base and that you need to find its area. (π×r²), you already have the radius so you put it in the formula and solve (π×5²)

4. Once you have the area of the base you can now completely solve. Multiply ⅓×(78.54)×14

8 0
3 years ago
How can 4.17 be written as a whole number with a fraction?
solmaris [256]
It can be written as 4 17/100
3 0
3 years ago
A 15% tip on a diner Bill is 2.55 how much is the bill?
crimeas [40]
2.7? im actually not 100%sure on this one 
5 0
3 years ago
Read 2 more answers
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