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Nastasia [14]
3 years ago
8

By what rule can I identify numbers that can be divided by nine without rest? 765 is dividable by 9, and so is 123456789. How ca

n I "see" that?
Mathematics
1 answer:
sesenic [268]3 years ago
7 0
If you add the digits and it divides by 9 then it divides for that number

Like 765 is 7+6+5=18 since 18/9=2 then 765 divides by 9
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(Show your working) I uploaded the question
svlad2 [7]

x^2 = the first integer

(x - 1)^2 = the second integer.

x^2 - (x - 1)^2 = ?

First, let's plug a number into our equation for x.

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As we can see the difference is odd but it's also the sum of the two consecutive integers.

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This works for all numbers. Let's plug another number into our equation for x.

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3 years ago
If i have 4 pounds of beef and it costs $9.56 how much would it cost me if I had 1 pound of beef
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Vector B has x, y, and z components of 3, 7.2,
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Answer:

\approx 9.0\:\mathrm{units}

Step-by-step explanation:

The magnitude of 3D vector \vec{v} can be given by the following:

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Plugging in given values, we have:

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3 years ago
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