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3 years ago

Pls help ASAP I need it in 10 mins

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

3 0

Answer:

I could only figure out that the range is the 2nd to last one. Sorry. Hope you get it right!

Step-by-step explanation:

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Find the unit rate in feet per second 300 yards over 1 minute

arlik [135]

In order to find the unit rate in ft / sec of 300 yards / min. We first have to elicit the conversion values for each unit of measurement, this will allows us identify how much will we multiply in order to get the goaled value.
Conversion values:
1. 1 yard = 3 feet
2. 1 minute = 60 seconds

Solution: 
1. 300 yards x 3 feet/1 yard = 900 feet
2. 1 minute x 60 seconds / 1 minute = 60 seconds

Thus, 900ft/60sec

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3 years ago

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Nadya [2.5K]

Answer:

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Step-by-step explanation:

81=3x

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3 years ago

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For the graph of any inequality, which points along the ray are solutions to the inequality?

Juliette [100K]

Answer:

The part where the two rays meet is you solution

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3 years ago

Let x be the amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train. Suppose that the d

larisa [96]

Answer:

a) $P(X$

$P(X>14) = 1-P(X$

b) $P(7< X$

c) We want to find a value c who satisfy this condition:

$P(x$

And using the cumulative distribution function we have this:

$P(x$

And solving for c we got:

$c = 20*0.9 = 18$

Step-by-step explanation:

For this case we define the random variable X as he amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train, and we know that the distribution for X is given by:

$X \sim Unif (a=0, b =20)$

Part a

We want this probability:

$P(X$

And for this case we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a} = \frac{x-0}{20-0}= \frac{x}{20}$

And using the cumulative distribution function we got:

$P(X$

For the probability $P(X>14)$ if we use the cumulative distribution function and the complement rule we got:

$P(X>14) = 1-P(X$

Part b

We want this probability:

$P(7< X$

And using the cdf we got:

$P(7< X$

Part c

We want to find a value c who satisfy this condition:

$P(x$

And using the cumulative distribution function we have this:

$P(x$

And solving for c we got:

$c = 20*0.9 = 18$

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2 years ago