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3 years ago

How much greater is the surface area of the cube?

Mathematics

1 answer:

Soloha48 [4]3 years ago

4 0

The surface area 3 times greater than the area.

6 * 2 gives the area
the surface area is by multiplying area by 3.
this means that the surface area is 3x bigger than area.

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If i get paid 7$ plus 15% how much is that

Fynjy0 [20]

You will get paid $7.15

6 0

3 years ago

Show steps on how to solve 5980/25

Elodia [21]

Answer: 2395.2

Step-by-step explanation:

25/2395 25/59=2 25/98=3 25/238=9 25/130=5 decimal point then bring down 0 =2395.2

8 0

2 years ago

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

You have torn a tendon and are facing surgery to repair it. the surgeon explains the risks to you: the probability of infection

skad [1K]

P(most favorable outcome) = 1 -(0.03 +0.16 -0.01) = 0.82

_____
"repair fails" includes the "infection and failure" case, as does "infection". By adding the probability of "repair fails" and "infection", we count the "infection and failure" case twice. So, we have to subtract the probability of "infection and failure" from the sum of "repaire fails" and "infection" in order to count each bad outcome only once.

The probability of a good outcome is the complement of the probability of a bad outcome.

5 0

2 years ago

a car can travel 19.6 miles for every 1 gallon of gasoline. calculate the number of miles the car can travel on 13.8 gallons of

lord [1]

I believe it 270.48 miles.

6 0

2 years ago