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AlexFokin [52]
3 years ago
5

00:00

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

1. 4.65+3.23 = 7.88 yes

2. 3.23 + 6.42= 9.65 not 9.45 no

3. 2.85 + 3.23 = 6.08 yes

4. 3.23 + 8.49 = 11.72 not 10.72 no

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3 years ago
Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 2 minutes. When taking
Xelga [282]

Answer:

1 plane

Step-by-step explanation:

Let's suppose the number of planes waiting or on the runway " P "

the number of planes taking off per hour ' P_{takeoff}'

the time for waiting and the runway T_{wr} so:

P = P_{takeoff}   x T_{wr}

P_{takeoff} = 18 airplanes per hour

we know that 1 min = 60s

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Also, 3 min and 30 s = 3 + 30/60 = 3.5 min

Next to find the time for waiting and the runway

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therefore, there is 1 plane either on the runway or waiting to take off

So, there is 1 plane either on the runway or waiting to take off

Read more on Brainly.com - brainly.com/question/13622877#readmore

5 0
3 years ago
Solve (x - 5)2 = 3.O A. x = -51 1/3O B. x = 3 15O C. x = 5+:13O D. x = 8 and x = -2
Virty [35]

In order to solve the given expression follow these steps:

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Answer:

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Step-by-step explanation:

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