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Nikitich [7]
3 years ago
6

A sample of restaurants in a city shows that the average cost of an appetizer is $6.32 with a standard deviation of

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0
The answer would be b
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What is the meaning of proportional and non-proportional?​
frutty [35]

Answer:

Proportional: Non-Proportional: How to tell the difference: A proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.

Step-by-step explanation:

<h3>hope it helps</h3>
4 0
2 years ago
Suppose y varies inversely with x, and y = 25 when x = 1/5. What is the value of y when x = 5 ?
34kurt

Answer:

y = 1

Step-by-step explanation:

Given that y varies inversely with x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition y = 25 when x = \frac{1}{5} , then

25 = \frac{k}{\frac{1}{5} } = 5k ( divide both sides by 5 )

5 = k

y = \frac{5}{x} ← equation of variation

When x = 5, then

y = \frac{5}{5} = 1

8 0
3 years ago
Find a ⋅ b. a = &lt;5, 2&gt;, b = &lt;4, 5&gt;
cestrela7 [59]

Answer:

  30

Step-by-step explanation:

For a = <xa, ya> and b = <xb, yb>, the dot product is the sum of products ...

  a·b = (xa)(xb) + (ya)(yb)

Substituting the given information, you have ...

  a·b = 5·4 + 2·5 = 20 + 10

  a·b = 30

_____

Some graphing calculators can do such math. There are also dot product calculators available on the Internet. If you have quite a few of these to calculate, you can put the appropriate formula into a spreadsheet.

6 0
3 years ago
To make some extra money over the summer, Kelsey and Olivia got jobs mowing the 5 acres of grass at the local park. Each week, t
FromTheMoon [43]

Answer:

Area covered by each girl = 2.5 acre

Step-by-step explanation:

Given:

Number of girls = 2

Total area = 5 acre

Find:

How much area covered by each girl

Computation:

Area covered by each girl = Total area / Number of girls

Area covered by each girl = 5 / 2

Area covered by each girl = 2.5 acre

5 0
3 years ago
What are all equivalent to 10+2x+5y+3x
Ilia_Sergeevich [38]
10+5x+5y is the simplified version
8 0
3 years ago
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