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3 years ago

Will give the brainliest!!!!

Mathematics

2 answers:

VARVARA [1.3K]3 years ago

8 0

Answer:

9 cm

Length x Width = Area

length:3

width: 3

3 x 3 = 9

Kruka [31]3 years ago

3 0

Answer: 9 cm

Step-by-step explanation:

The formula of the area of a square is

A = s²

The ‘A‘ stands for area and the ‘s’ stands for side measure.

Now, since you already know the side measure, it’s 3cm, you just have to put it into the equation.

So, now you have:

A = 3²

A = 9

Therefore, the area of the square is 9 cm.

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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

36s = 36/60 = 0.6 min

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

Next to find the time for waiting and the runway

∴ $T_{wr}$ = 0.6 + 3.5 = 4.1 min/60 (converting into hour)

$T_{wr}$ = 0.068 hour

P = 18x0.068 = 1.23

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

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researchers are conducting a survey about what brand of ice cream shoppers prefer. they survey the tenth person who walks into t

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The store is conducting random sampling.

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4 years ago

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A/4=8/16 what is the missing number

NNADVOKAT [17]

A/4 = 8/16
cross multiply
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Answer:

Standard Deviation is 2.236

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Step-by-step explanation:

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