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morpeh [17]
3 years ago
13

On a shelf there are 4 different english books, 5 different arabic books, 7 different japanese books. how many different ways ar

e there to pick 3 books that are not in the same language?
Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0
That would be 4*5*7 = 140 ways
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Please help due in 5 minutes
soldier1979 [14.2K]

Answer:

(-1,-2)

Step-by-step explanation:

There is a solution where the two expressions intersect. We can plug in what we know in the first equation in the second.

x= -1

y=3x+1

y= 3(-1)+1

y= -3+1

y= -2

Plugging y value in the equation to find x:

-2=3x+1

-3=3x

x= -1

Therefore, the point is (-1,-2)

<em>I hope this helps! :)</em>

5 0
3 years ago
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Convert 72 miles per hour into feet per second, please show work
yuradex [85]
72 × 1.4666666666667 = 105.6 feet per second
7 0
2 years ago
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Find the volume of the cylinder.
Aneli [31]

Answer:

144π or 452.16 units³

Step-by-step explanation:

The formula for volume of a cylinder is \pi r^2 h. We can use the given values for radius and height to find the volume of the cylinder.

<h3>Finding the Volume</h3>

V=\pi r^2 h\\V=\pi6^2(4)\\V=\pi36(4)\\V=144\pi \ OR\ 452.16

The volume of the cylinder is 144π or 452.16 units³.

4 0
2 years ago
I was walking to the store at the same time as my friend Angela. No matter what, She has always gotten there twice as fast as me
atroni [7]
Let's call your speed "a"

her walking speed is then "2a"

and her friend's scooter speed is 10 a

let's also call the distance you need to walk "d"

so the time (t)you need is:

d/t=a
t=d/a

and her time is:
 t=\frac{d}{2} /2a+ \frac{d}{2} /10a
(half a distance with the speed of 2a and half a distance (d/2) with the distance of 10 a

now we count (we know that her time is 30 minutes)

30= \frac{d}{4a}+\frac{d}{20a} //multiply by 20a

600a= 5d+d
600a=6d/divide by 6
100a=d

Now, in order to calculate your time we need to calculate:

t=d/a

but we know how much is d now!
t=\frac{100a}{a}=100

which means that you need 100 minutes, or 1 h 40 minutes!!!

6 0
3 years ago
Can someone please graph this ASAP!!!! 30 points and brainly for the best answer!!!!!
Alenkinab [10]

Answer:

The equation is

y\ =\ -0.5x+8

and the graph looks like this

3 0
3 years ago
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