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Stella [2.4K]
3 years ago
11

An amtrak train travels at a speed of 125 miles per hour convert the speed into minutes/9611920/582d421e?utm_source=registration

Mathematics
1 answer:
Leona [35]3 years ago
5 0
125 MPH = 125/60 MP(Minute) because 1 Hour = 60 Minutes
= 2.0833...Miles per minute
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Jose works at a restaurant. They earn 14.45 per hour plus a 8.50 each time someone signs up for the store's credit card.
lidiya [134]

m = money earned in one week

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x = times credit card was swiped

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7 0
3 years ago
Resistors are labeled 100 Ω. In fact, the actual resistances are uniformly distributed on the interval (95, 103). Find the mean
Zinaida [17]

Answer:

E[R] = 99 Ω

\sigma_R = 2.3094 Ω

P(98<R<102) = 0.5696

Step-by-step explanation:

The mean resistance is the average of edge values of interval.

Hence,

The mean resistance, E[R] = \frac{a+b}{2}  = \frac{95+103}{2} = \frac{198}{2} = 99 Ω

To find the standard deviation of resistance, we need to find variance first.

V(R) = \frac{(b-a)^2}{12} =\frac{(103-95)^2}{12} = 5.333

Hence,

The standard deviation of resistance, \sigma_R = \sqrt{V(R)} = \sqrt5.333 = 2.3094 Ω

To calculate the probability that resistance is between 98 Ω and 102 Ω, we need to find Normal Distributions.

z_1 = \frac{102-99}{2.3094} = 1.299

z_2 = \frac{98-99}{2.3094} = -0.433

From the Z-table, P(98<R<102) = 0.9032 - 0.3336 = 0.5696

5 0
3 years ago
n i g 5. When the mass of an object you determine which of the following I _ . . . - gazing the quantity of matter In the object
Ostrovityanka [42]
The is A.) the quantity of mater
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3 years ago
4% of 73 is what? how would u solve that ima lil slow?
Svetradugi [14.3K]

Answer:

2.92

Step-by-step explanation:

4 percent *73 =

(4:100)*73 =

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292:100 = 2.92

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3 years ago
8.546 rounded to the nearest tenths?
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Answer:

8.550

Step-by-step explanation:

7 0
3 years ago
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