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algol13
2 years ago
6

PLEASE LOOK AT PICURE!!! I WILL MARM BRAINIEST TO WHOEVER IS CORRECT!!!

Mathematics
2 answers:
VikaD [51]2 years ago
4 0

Answer:

Step-by-step explanation:

If you want it in decimal form it should be 8.94427190.. and so on it wants it to the nearest hundredth so its just 8.94? I hope this helps the exact form not in decimal form is 4√5.

Nataliya [291]2 years ago
4 0

Answer:

8.94

Step-by-step explanation:

(-3, -9), (1, -1)

x1 = -3

x2 = 1

y1 = -9

y2 = -1

d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

d = \sqrt{(1 - (-3))^2 + (-1 - (-9))^2}

d = \sqrt{4^2 + 8^2}

d = \sqrt{16 + 64}

d = \sqrt{80}

d = \sqrt{16 \times 5}

d = 4\sqrt{5}

d = 8.94

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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

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2 years ago
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4 0
3 years ago
A plane flying overhead at night is located by two
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Step-by-step explanation:

5 0
3 years ago
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Answer:

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