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jeyben [28]
3 years ago
8

How do you write 6.73 in scientific notation?

Mathematics
1 answer:
labwork [276]3 years ago
4 0

Answer:

6.73 x 10^{2}

Step-by-step explanation:

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Prove the following statements: (a) For every integer x, if x is even, then for every integer y, xy is even. (b) For every integ
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Answer and Step-by-step explanation:

(a) Given that x and y is even, we want to prove that xy is also even.

For x and y to be even, x and y have to be a multiple of 2. Let x = 2k and y = 2p where k and p are real numbers. xy = 2k x 2p = 4kp = 2(2kp). The product is a multiple of 2, this means the number is also even. Hence xy is even when x and y are even.

(b) in reality, if an odd number multiplies and odd number, the result is also an odd number. Therefore, the question is wrong. I assume they wanted to ask for the proof that the product is also odd. If that's the case, then this is the proof:

Given that x and y are odd, we want to prove that xy is odd. For x and y to be odd, they have to be multiples of 2 with 1 added to it. Therefore, suppose x = 2k + 1 and y = 2p + 1 then xy = (2k + 1)(2p + 1) = 4kp + 2k + 2p + 1 = 2(kp + k + p) + 1. Let kp + k + p = q, then we have 2q + 1 which is also odd.

(c) Given that x is odd we want to prove that 3x is also odd. Firstly, we've proven above that xy is odd if x and y are odd. 3 is an odd number and we are told that x is odd. Therefore it follows from the second proof that 3x is also odd.

3 0
3 years ago
3/y =6/y-2<br>I need help on this please<br>worth 15 points
Leto [7]

Multiply both sides by y...

(3/y)y-(6/y)y-2y

Simplify it...

(3/y)y=3

(6/y)y=6

3=6-2y

Subtract 6 from both sides...

-2y=-3

Divide both sides by -2...

y=3/2


The solution is y=3/2

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The first and last represent functions, no function has an input with two separate outputs
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Ordering the Angle Measures of a Triangle
mel-nik [20]

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  C, B, A

Step-by-step explanation:

The sides in order from shortest to longest are ...

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3 years ago
Use the relationship between the angles in the figure to answer the question.
Anuta_ua [19.1K]

Answer:

37+x+53 = 180

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Step-by-step explanation:

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