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aev [14]
3 years ago
11

A plane has to travel 2,800 miles at an average speed of 560 miles per hour. How many hours will it take to reach its destinatio

n?
Mathematics
2 answers:
Kamila [148]3 years ago
7 0

2800/560 = 5

It will take the plane 5 hours

densk [106]3 years ago
7 0

Answer:

<u>5</u>

Step-by-step explanation:

I took le test, it was le correct

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(9+8)+32=49 which property is this
Sergio [31]
Associativity means
(A+B)+C=A+(B+C)=A+B+C

Substitute A=9, B=8, C=32 to apply to this problem.
6 0
3 years ago
Find all exact solutions on [0, 2π). (Enter your answers as a comma-separated list.)
nalin [4]

Answer:

0, \dfrac{\pi}{6}, \dfrac{5\pi}{6},  \pi

Step-by-step explanation:

Given the equation:

sin(x)-2sin(x) tan(x)=0

To find:

The solutions of given equation in the range [0, 2\pi) i.e. 0 can be in the answer but 2\pi can not be there in the answer.

Solution:

Taking tan(x) common, we get:

tan(x) (1-2sin(x))=0

The solutions can be given as:

tan(x) = 0 OR 1-2sin(x) = 0

Let us solve both the equations one by one:

First equation:

tan(x) = 0\\ \Rightarrow x=0, \pi

Second equation:

1-2sin(x) = 0\\\Rightarrow 2sinx=1\\\Rightarrow sinx=\dfrac{1}{2}\\\Rightarrow x = \dfrac{\pi}{6}, \dfrac{5\pi}{6}

Therefore, the answers as a comma separated list are:

0, \dfrac{\pi}{6}, \dfrac{5\pi}{6},  \pi

7 0
3 years ago
a 70kg man ascend a flight of stairs of height 4meter in 7secs calculate the power expanded by the man​
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Answer:

p= mgh/t

= 70×10×4/7=400J/sec

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Two hundred people were surveyed about their favorite outdoor leisure activity. The results of the survey are displayed in the c
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