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2 years ago

5

An elevator ascends at a rate of 29.6 feet per second. If a building is 1,450 feet tall, about how long would it take for the el

evator to travel from the ground floor to the roof

2 answers:

nadezda [96]2 years ago

8 0

1,450/29.6= 48.986 seconds
It would take 49 seconds for the elevator to travel from the ground floor to the roof.

lianna [129]2 years ago

7 0

Answer:

49 seconds.

Step-by-step explanation:

We have been given that an elevator ascends at a rate of 29.6 feet per second. A building is 1,450 feet tall. We are asked to find the time it will take for the elevator to travel from the ground floor to the roof.

To find the time taken by elevator to reach the top of the building, we will use rate formula.

$\text{Time}=\frac{\text{Distance}}{\text{Rate}}$

$\text{Time}=\frac{\text{1450 ft}}{\frac{\text{29.6 feet}}{\text{second}}}$

$\text{Time}=\frac{\text{1450 ft}}{\text{29.6 feet}}\times\text{second}$

$\text{Time}=48.986486\times\text{second}$

$\text{Time}\approx 49\text{ seconds}$

Therefore, it will take approximately 49 seconds for the elevator to travel from the ground floor to the roof.

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Answer:

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Explanation:

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Find the value of $x$ that maximizes $$f(x) = \log (-20x + 12\sqrt{x}).$$ If there is no maximum value, write "NONE".

kakasveta [241]

The function is written as:
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Complete Question

The complete question is shown on the first uploaded image

Answer:

a

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The correct answer choice is

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b

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The standard deviation is $\sigma=4$

c

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d

The correct answer is

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The probabilities $P \approx Pe$

Step-by-step explanation:

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substituting the value

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Now z is mathematically evaluated as

$z = \frac{x-\mu}{\sigma }$

Substituting values

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$=3.5$

So using the z table the $P(Z \ge 3.5)$ is 0.0002

The probability P and Pe that 34 or more subject would choose the center pair is very small So

The correct answer is

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