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Setler [38]
2 years ago
9

There are 21 juice bottles out of which 7 bottles are full. 7 are half-full and the remaining 7 are empty to divided amongst 3 f

riends equally. You don't have any measuring device. After dividing them ( both bottles and juice ) equally how mach empty bottles each will get?​
Mathematics
1 answer:
kozerog [31]2 years ago
4 0

answer:

each friend would have 3 and 1/2 bottles of juice meaning each friend would have 3 fully empty bottles.

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As θ increases from -pi/2 to 0 radians, the value of cos θ will.
GrogVix [38]

Answer:

4) Increase from 0 to 1

Step-by-step explanation:

We have to analyze the value of cos(Ф) from -π/2 to 0. This can be done if we simplify evaluate the value of cos(Ф) at these two extreme.

cos(-\frac{\pi}{2}) = cos(\frac{\pi}{2} )=cos(90)=0\\\\  cos(0)=1

This shows that value of cos(Ф) is 0 at  -π/2  or -90 degrees and increased to 0 at 0 degrees.

This answer can be validated if you visualize the graph of cos function. Cos function has a peak at 0 degrees, i.e. a value equal to 1. On right and left side of 0 degrees, the curve starts falling down and eventually touches the horizontal axis at 90 degrees and -90 degrees. This is shown in the graph attached below:

8 0
3 years ago
What rational number represents a drop of 4 1/4 in?<br><br><br>Enter your answer in the box.<br>​
aalyn [17]

Answer:

The fraction 1/4 is a rational number.

It stands for the ratio between the integers 1 and 4.

6 0
3 years ago
Read 2 more answers
Given Sn=2n^2 - 5n, find
brilliants [131]

Answer:

a) -3

b) 117

c) 100

Step-by-step explanation:

(a) 2(1)²-5(1)

1²= 1

2×1= 2

2-5= -3

(b) 2(9)²-5(9)

9²= 81

81×2= 162

162-45= 117

(c) 2(4)²-5(4) +2(8)²-5(4)

4²=16

16×2= 32

32-20= 12

8²=64

64×2= 128

128-40= 88

88+12= 100

hope it helps!

6 0
3 years ago
A mother is currently 7 times older than her son. In 3 years time, she will be 5 times older than her son. Let x and y be the pr
Softa [21]

Answer:

If the child is currently 6 years old and the mom is 42, in three years she'll be 45 and he'll be 9

Step-by-step explanation:

The son is y and the mom is x

x=7y

x+3=5(y+3)

7y+3=5y+15

7y=5y+12

2y=12

y=6

8 0
3 years ago
Read 2 more answers
Solve equation <br> √ 13x+27=√ 4x
natima [27]
What you have to do is rearrange the equation by subtracting what is on the right of the equal sign from both sides of the equation 

so it would be 4*x-13*x-(27)=0
5 0
3 years ago
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