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3 years ago

I need help please give 10 points

Mathematics

1 answer:

Alinara [238K]3 years ago

5 0

Answer:

Step-by-step explanation:

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A parking garage has 6 levels . Each level has 15 rows. Each row has the same number of parking spaces . There are 2,250 parking

Vika [28.1K]

6*15=90 rows in total.
2250/90=25 spaces in a row

6 0

3 years ago

Tara scored 20 points in her first basketball game and n points in each of the next 6 games. What expression represents tara's t

Karo-lina-s [1.5K]

Answer:

20+6n

Step-by-step explanation:

Tara's point total is found by adding up the points in each game ...

20 + n + n + n + n + n + n

= 20 +6n

_____

Of course, we use multiplication to simplify repeated addition.

6 0

3 years ago

I've been looking in the study guide but can't find how to solve it

OLga [1]

The answer is -1/16 or -0.0625, do you need to see work?

6 0

3 years ago

Read 2 more answers

The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.4 minutes and a standard deviation of 3.5

Lorico [155]

Answer:

0.6672 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8.4 minutes

Standard Deviation, σ = 3.5 minutes

We are given that the distribution of distribution of taxi and takeoff times is a bell shaped distribution that is a normal distribution.

According to central limit theorem the sum measurement of n is normal with mean $\mu$ and standard deviation $\sigma\sqrt{n}$

Sample size, n = 37

Standard Deviation =

$=\sigma\times \sqrt{n} = 3.5\times \sqrt{37}=21.28$

P(taxi and takeoff time will be less than 320 minutes)

$P( \sum x < 320) = P( z < \displaystyle\frac{320 - 37(8.4)}{21.28}) = P(z < 0.4323)$

Calculation the value from standard normal z table, we have,

$P(\sum x < 320) =0.6672 = 66.72\%$

0.6672 is the probability that for 37 jets on a given runway, total taxi and takeoff time will be less than 320 minutes.

7 0

3 years ago

PLEASE HELP! THANK YOU! :)

Furkat [3]

Answer:

BiG ChUnGuS moo

Step-by-step explanation:

6 0

3 years ago