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RideAnS [48]
3 years ago
5

Please help i really need it, i will give brainliest to the right answers

Mathematics
1 answer:
loris [4]3 years ago
7 0

Answer: A

Step-by-step explanation:

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James and Cameron are watching a film. They pause it with one fifth left to watch. What is the ratio of how much they have watch
goldenfox [79]

Answer:

The ratio of how much they have watched to how much they have left to see is 4 : 1.

Step-by-step explanation:

Consider that the total duration of the film is, 1.

It is provided that James and Cameron paused when there is one-fifth left to watch.

That is, they have already watched, 1-\frac{1}{5}=\frac{4}{5} th of the film.

Compute the ratio of how much they have watched to how much they have left to see as follows:

\frac{\text{Duration Watched}}{\text{Duration Left}}=\frac{4/5}{1/5}=\frac{4}{1}=4:1

Thus, the ratio of how much they have watched to how much they have left to see is 4 : 1.

5 0
3 years ago
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
3 years ago
Sum of terms pre calc
Dominik [7]

Answer:

Sn

<em>Your</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>Option</em><em> </em><em>A</em><em> </em><em>.</em>

8 0
2 years ago
The midpoint of segment AB is (6, 5). The coordinates of point A are (7, 10). Find the coordinates of point
gayaneshka [121]
Mx = (Ax + Bx)/2      My = (Ay + By)
 6  =   (7 + Bx)/2        5  = (10 + By)/2
 12 = 7 + Bx              10 = 10 + By
  5  =  Bx                     0 =    By

(5,0)
5 0
3 years ago
Find the area. 7cm,5cm,5cm,10cm,22cm, 20cm​
Fantom [35]

Answer:

770000

Step by step explanation:

8 0
2 years ago
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