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Readme [11.4K]
3 years ago
10

3. Please show your work to find the mean and standard deviation of the data. Round to the nearest tenth.

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0
The standard deviation of the numbers 14 22 6 9 11 23 15 18 20 12 is 5.67646 the mean is 15 and the standard deviation variance is 32.222.
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10 x 30=300 because you 3 tens is 30 times 10 is 300. hope it helped.
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What expression is equivalent to (4y^2-3) (4y+3)
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Answer:

Step-by-step explanation:

Just use the distributive property.

(4y^2-3)(4y+3)

= 4y^2(4y+3) - 3(4y+3)

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Polygon C has an area of 40 square units and someone drew a scaled version of polygon C with a scale factor of 1/2 and labeled i
77julia77 [94]

Answer:

20 square units

Step-by-step explanation:

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3 years ago
1. The county fair charges $1.50 per ticket for the rides. Jermaine bought 20 tickets for the rides and spent a
makvit [3.9K]

Cost per ticket for the rides = $1.50.

a) Let us assume the number of ride tickets = x.

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<em>Fair admission charge = Total amount spent - Amount spent on 20 tickets</em>

<em> =  $48.75 - $30 = $18.75.</em>

Let us apply slope-intercept form y=mx+b to get the equation.

Total cost of x number of tickets at the rate $1.50 each ticket = 1.50x.

To<em>tal cost of fair = Total cost of x number of tickets + Fair admission charge.</em>

<h3>b) y = 1.50x + 18.75.</h3>

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Answer:D

Step-by-step explanation:

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2 years ago
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