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Ulleksa [173]
3 years ago
15

Explain why 2n+1 must be an odd number

Mathematics
1 answer:
Lorico [155]3 years ago
4 0
If is an integer (a whole number), then the expression represents an even number, because even numbers are the multiples of 2. The expressions 2 n − 1 and 2 n + 1 can represent odd numbers, as an odd number is one less, or one more than an even number.
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Last question please help((: #10
GrogVix [38]
We would use the sine function because we have an angle the hypotenuse, and the unknown opposite side.

sin(x)=opposite/hypotenuse
sin(60)=x/30
√3/2=x/30 (cross multiply)
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So the correct answer is A

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6 0
4 years ago
Read 2 more answers
6,173,253 in expanded form
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Which expressions are equivalent to 2[3/4x+7]-3(1/2x-5)? Check all that apply
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Answer:

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Step-by-step explanation:

This is correct. Trust me.

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il63 [147K]

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dangina [55]

Answer:

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Step-by-step explanation:

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