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Tems11 [23]
3 years ago
15

The school auditorium has 448 chairs set out for the third- grade performance.What is 448 rounded to the nearest ten

Mathematics
1 answer:
rjkz [21]3 years ago
6 0
448 rounded to the nearest 10 is 450 because 448 is closer to 450 not 440.
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Mr.yueng graded his students math quizzes students came up with four different answers when solving the equation x3=22. Which an
alex41 [277]

The question is incomplete. Here is the complete question:

Mr.yueng graded his students math quizzes students came up with four different answers when solving the equation x3=22. Which answers is correct.

(A) \frac{22}{3}

(B) \sqrt[3]{22}

(C) \pm \sqrt[3]{22}

(D) \sqrt{22}

Answer:

(B) \sqrt[3]{22}

Step-by-step explanation:

Given:

The equation to solve is given as:

x^3=22

Here, the left hand side of the equation has a variable 'x' in exponent form. So, in order to solve for 'x', we have to eliminate the exponent.

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\sqrt[n]{x^n} =x

So, taking cubic root on both the sides, we get

\sqrt[3]{x^3}=\sqrt[3]{22}\\\\x=\sqrt[3]{22}

Therefore, the second student has written the correct answer and hence the correct option is (B).

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3 years ago
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Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 3 minutes. When taking
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Answer:

1.96 planes

Step-by-step explanation:

The computation of the number of planes is shown below:

As we know that

System Inventory  is

= Flow rate in the system × Throughput time

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Throughput time  is

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= 441  seconds

= 441  per 60 seconds

Therefore the number of planes is

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= 1.96 planes

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Do you have a picture to go with it?
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