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goblinko [34]
2 years ago
15

2) A shirt costs $12.50 but there is a discount of 10%. The

Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
7 0
12.50-0.1=11.25
11.25x0.09= 1.01
11.25+1.01=12.26

The final price is $12.26
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The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviat
tensa zangetsu [6.8K]

Answer:

0.6710

Step-by-step explanation:

The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviation is 5 millimeters.

Find the probability that the diameter of a selected bearing is between 104 and 115 millimeters. Round your answer to four decimal places.

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = 107 mm

σ is the population standard deviation = 5 mm

For x = 104 mm

z = 104 - 107/5

z = -0.6

Probability value from Z-Table:

P(x = 104) = 0.27425

For x = 115 mm

z = 115 - 107/5

z = 1.6

Probability value from Z-Table:

P(x = 115) = 0.9452

The probability that the diameter of a selected bearing is between 104 and 115 millimeters is calculated as:

P(x = 115) - P(x = 104)

0.9452 - 0.27425

= 0.67095

Approximately = 0.6710

8 0
2 years ago
For 50 points + branliest ! <br> Study the model to answer the question
Anika [276]
I’m pretty sure the correct answer is B
4 0
2 years ago
thirty five percent of the revenue produced at the auction will go to the charity. the morning participants spent an average of
spin [16.1K]
I'm not sure that I am 100% right but I'll give it a shot.
50+75= 125*0.35=43.75
$43.75

4 0
3 years ago
You roll a number cube with 6 sides two times. What is the probability of rolling a number greater than 2 and an odd number?
svetoff [14.1K]

Answer:

lol you've asked like 10 probability questions in 20 minutes i wonder what chapter you're studying

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
4 + 5x = 3 (-x + 3) -11
Salsk061 [2.6K]

Answer:

4 + 5x = 3 (-x + 3) -11

4+5x=-3x+9-11

5x+3x=9-11-4

8x= -6

x= -0.75

8 0
3 years ago
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