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mestny [16]
4 years ago
10

The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read

er. Six samples are collected of the number of scanning errors: 36, 14, 21, 39, 11, and 2 errors, per 1,000 scans each.
What is the mean and standard deviation for these six samples?
Mathematics
1 answer:
HACTEHA [7]4 years ago
5 0
200 per 1000 is the mean
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The area of a circle 220mm in diameter is approximately how many times greater than the area of a circle 30mm in diameter?
zmey [24]
The first circle is approximately 44 times greater than the second cirle

Radius = 110 mm
110² = 10,000 mm² = Area

Radius = 15 mm
15² = 225 mm² = Area

Hope this helps!

5 0
4 years ago
You can buy 3 apples at the quick market for $1.17. you can buy 5 of the same apples at stop and save for $2.30. which place is
omeli [17]
If you divide 1.17 by 3 you get 0.39. If you divide 2.30 by 5 you get 0.46. The quick market has cheaper apples!
4 0
3 years ago
Write 2/3 of 4 as a fraction.
algol [13]
2/3(4)= 8/3
(2/3)(4/1)
(2)(4)/(3)(1)
=8/3
hope this helps!
5 0
3 years ago
Can somebody please give me a step by step explanation. I have the answer I just don’t know how to show work!!!!!!! Please!!!
krek1111 [17]

Answer:

5391.76

Step-by-step explanation:

We have a rectangle and 2 semicircles

First find the area of the rectangle

A = l*w

A = 44*88= 3872

Then we know that 2 semicircles = 1 circle

The area of a circle is

A = pi r^2

The diameter is 44 so the radius is 22

A = pi * 22^2

A = pi484

A =1519.76

Add the areas together

1519.76+3872

5391.76

7 0
4 years ago
can someone please help out with this? "The Spanish Club begins the school year with a $50 balance in its account. To raise mone
Goshia [24]
Answer and expl in pdf below:)
3 0
3 years ago
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