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2 years ago

A movie is 2 hours and 28 minutes long. It started at 7:50pm . At what time will the movie ends

Mathematics

2 answers:

aliya0001 [1]2 years ago

6 0

Movie ends at: 7.50+2 28min

7. 50pm+ 2h ->9.50
9.50+28 min -> 10.18 pm

Arada [10]2 years ago

4 0

7:50 + 2 hours

9:50 + 10 = 10.00

+ 18 = 10.18pm

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A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean l

tankabanditka [31]

Answer:

The probability that the mean monitor life would be greater than 96.3 months in a sample of 84 monitors

P(X⁻ ≥ 96.3) = 0.0087

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 95

Given that the standard deviation of the Population = 5

Let 'X' be the random variable in a normal distribution

Let X⁻ = 96.3

Given that the size 'n' = 84 monitors

Step(ii):-

The Empirical rule

$Z = \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{96.3 - 95}{\frac{5}{\sqrt{84} } }$

Z = 2.383

The probability that the mean monitor life would be greater than 96.3 months in a sample of 84 monitors

P(X⁻ ≥ 96.3) = P(Z≥2.383)

= 1- P( Z<2.383)

= 1-( 0.5 -+A(2.38))

= 0.5 - A(2.38)

= 0.5 -0.4913

= 0.0087

Final answer:-

The probability that the mean monitor life would be greater than 96.3 months in a sample of 84 monitors

P(X⁻ ≥ 96.3) = 0.0087

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2 years ago

Assuming the conditions regarding the motion represented in the graph remain the same, determine the acceleration of the object

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2 years ago

Read 2 more answers

Can someone help me with this question? I’ll mark you brainliest!!!

Mariulka [41]

Answer:

A. P' = (9, -2)

B. P" = (1, -4)

Step-by-step explanation:

To make it easier to understand, make point C the origin (0 , 0). From that, you will notice point P is 3 units right and 5 units up of point C, meaning the coordinates of point P is (3, 5). A 90° rotation clockwise on point P (3, 5) is (5, -3). Since point C is 4 units right and 1 unit up from the actual origin, we will add that to (5,-3); (5 + 4, -3 + 1) = (9, -2). Therefore, P' = (9, -2).

Knowing the coordinates of P' allows us to figure out the coordinates of P''. Once again, we'll make point C the origin, meaning P' would be at (5, -3). Like we did before, we will perform a 90° rotation clockwise of (5, -3) to get (-3, -5). Lastly, add back the appropriate amount of units to (-3, -5) to make point C the center of rotation in this example; (-3 + 4, -5 + 1) = (1, -4). Therefore, P" = (1, -4).

Please note that this is only my method of solving translations. Please consult more official sources if you want to learn more. Other than that, I hope this helps!

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2 years ago