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Julli [10]
3 years ago
5

Prove:

Mathematics
1 answer:
Levart [38]3 years ago
3 0
Given the statement, "If n^2 is odd, then n is odd," its contrapositive claims that, "If n is not odd, then n^2 is not odd."

So assume n is not odd, i.e. n is even. This means there is an integer k for which n=2k. Squaring this gives n^2=(2k)^2=4k^2.

Well, we can write 4k^2=2(2k^2), and 2k^2 is just another integer, which means 4k^2=(2k)^2=n^2 must be even.
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ivann1987 [24]
The answer is 76 i think
8 0
3 years ago
What is the order of the matrix?<br><br> (see picture)<br><br> a.2x3<br> b.3x5<br> c.5x3<br> d.3x2
Lana71 [14]

Step-by-step explanation:

Matrix has 5 rows and 3 columns.

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6 0
3 years ago
If AB is parallel to CD and the slope of CD is-5, what is the slope of AB?
ankoles [38]

Answer:

C. -5

Step-by-step explanation:

If the two lines are parallel, they have the same slope. Therefore the slope of AB is -5.

5 0
3 years ago
Witch variable represents the y intercept
finlep [7]

Answer:

B

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7 0
2 years ago
The janitor at a school discovered a leak in a pipe. The janitor found out that it was leaking at a rate of 14 oz per hour. How
umka2103 [35]

2.625 gallons a day

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336 oz converted to gallons is 2.625 gallons


7 0
3 years ago
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