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Agata [3.3K]
2 years ago
15

Please help marking people as BRAINLIST

Mathematics
1 answer:
romanna [79]2 years ago
3 0
I believe the answer is 8
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Trevon bought one package of blueberries for $3. How many packages can Elisa buy if she has $63
kakasveta [241]
Since trevon bought one package for 3 dollars than 3 x 21 equals 63
Answer = 21
8 0
2 years ago
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. (a) Determine the
maxonik [38]

Answer:

a) 0.5 = 50% of flanges exceed 1 millimeter.

b) A thickness of 0.96 millimeters is exceeded by 90% of the flanges

Step-by-step explanation:

A distribution is called uniform if each outcome has the same probability of happening.

The uniform distributon has two bounds, a and b, and the probability of finding a value higher than x is given by:

P(X > x) = \frac{b - x}{b - a}

The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters.

This means that a = 0.95, b = 1.05

(a) Determine the proportion of flanges that exceeds 1.00 millimeters.

P(X > 1) = \frac{1.05 - 1}{1.05 - 0.95} = \frac{0.05}{0.1} = 0.5

0.5 = 50% of flanges exceed 1 millimeter.

(b) What thickness is exceeded by 90% of the flanges?

This is x for which:

P(X > x) = 0.9

So

\frac{1.05 - x}{1.05 - 0.95} = 0.9

1.05 - x = 0.9*0.1

x = 1.05 - 0.9*0.1

x = 0.96

A thickness of 0.96 millimeters is exceeded by 90% of the flanges

4 0
3 years ago
3-2/3= ?<br><br><br> 2/3 is half
Helga [31]
Exact form = 7/3

Decimal = 2.3

Mixed number Form = 2 1/3
8 0
3 years ago
Please help me and show your working out thank youu
slava [35]

Answer:

Step-by-step explanation:

mm = 1357

m = 1.357

cm = 135.7

5 0
3 years ago
What is logarithmic form of 81^1/2=9
aleksandrvk [35]
Log81 (9) = 1/2
The 81 is a subscript don’t know if I could type it like that so I just put it like that
5 0
3 years ago
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