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GREYUIT [131]
3 years ago
12

How many strings of 4 decimal digit do not contain the same digit twice?

Mathematics
1 answer:
goblinko [34]3 years ago
7 0
9*9*8*7

You can choose 9 digits for the first digit, 9 Fót the second (because IT can be 0) and 8 Fót the third etc.. hope this helps
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What’s the answer plss
ehidna [41]

Answer:

∠M

Step-by-step explanation:

∠M is the only vertex that does not already have an indicated angle. There are three vertexes, being 90° at ∠K (the box-like figure means it is a right angle, therefore 90°) , 61° at ∠N , and ∠M, which does not have a given angle.

6 0
1 year ago
The length of a rectangle is 3 m longer then it’s width the area of the rectangle is 154 m^2 what is the width of the rectangle
Alenkasestr [34]
The width is 11.

You can get this by setting up an equation that says:

x (x - 3) = 154

Then distribute and use the quadratic equation to solve. 
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3 years ago
I don't get this I need help?
Aleks04 [339]

Answer: 4r^2

Step-by-step explanation:

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I'm guessing 58.726, I did the Math a while ago.
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