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ZanzabumX [31]
3 years ago
13

A rectangular cube of volume 8000cm3 has

Mathematics
1 answer:
Alex787 [66]3 years ago
5 0

Answer:

volumn= l*b*h

4x*2x*1x= 8000 cm3

8x= 8000 cm3

x= 1000cm3

length = 4000

breadth= 2000

height = 1000

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Simplify the expression (6x^3/3x^4)^2<br> A. 12x^5/6x^6<br> B. 4/x^2<br> C. 2x^6/x^8<br> D. 2/x
Bess [88]
The Answer is B.
Sol: (6/3x^(3-4))^2
= (2/x)^2
=4/x^2


8 0
3 years ago
Read 2 more answers
A pilot approaching a 3000-meter runway finds that the angles of depression of the ends of the runway are 14° and 20°. How far i
Amanda [17]
Answer:  The plane is 6,547 feet from the closer edge of the runway.

This is a trigonometry problem that will involve setting up 2 different triangles. One going to the closer edge of the runway and the other going to the far end of the runway.

The constant between the 2 triangles is the height of the plane. You can solve for this is both triangles and set them equal to each other. 

Do that will give you the equation:

x/tan(70) = (x+3000)/tan(76) where x is the distance to the closer end of the runway. 

If you solve that equation, you will get x = 6547 feet.

7 0
3 years ago
The radius of a circle is 9 kilometers. What is the circle's area?
krek1111 [17]

A=π r²=π×9²≈254.469km²

r radius is 9km

I hope it helped!!!

8 0
3 years ago
A high school club has 10 members who are seniors and 8 members who
Taya2010 [7]

Answer:

The probability that the person will not  be a senior

P(E⁻) = 1 - P(E)

       =  1- \frac{5}{9} = \frac{4}{9}

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given A high school club has 10 members who are seniors and 8 members who  are juniors

n(S) = 10 + 8 = 18

If a member is randomly selected to be the club president

Let 'E' be the event that the person will  be a senior

The probability that the person will  be a senior

      P(E) = \frac{n(E)}{n(S)}

     P(E) = \frac{n(E)}{n(S)} = \frac{10}{18} = \frac{5}{9}

The probability that the person will not  be a senior

P(E⁻) = 1 - P(E)

       =  1- \frac{5}{9} = \frac{4}{9}

     

6 0
3 years ago
What are 23 times 76
aksik [14]
23 x 76 is 1748
I hope this helps :)
3 0
3 years ago
Read 2 more answers
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