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crimeas [40]
3 years ago
15

Help!!! does anyone know how to simplify this expretion j+1-2j-1+3j+1

Mathematics
1 answer:
Llana [10]3 years ago
7 0

Answer:

2j+1

Step-by-step explanation:

Circle the first symbol in front of the j's and 1's

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Suppose you want to learn more about the heights of the buildings in New York City. How would you choose a sample of the buildin
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Answer:

I'd use a Non-probability Sampling Method.

Explanation:

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This means that there are certain buildings that won't fit in the sample. In a non-probability sample, objects or subjects are elected based on specified criteria that are not random. This means that not all objects/subject have a c<em>hance</em> of being included in the sample.

It is assumed that the question/assignment centers around high rise buildings.

Therefore, one storey buildings and bungalows that are within and outside New York will not be included in the sample.

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3 years ago
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Let q be the proposition: The sides of triangle ABC are such that 

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An example of a conditional statement is : p⇒q, that is:

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converse: q⇒p
inverse: ¬p⇒¬q (if [not p] then [not q])
contrapositive: ¬q⇒¬p

Converse of our statement:

if The sides of triangle ABC are such that |AB|^2=|BC|^2+|AC|^2
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True


Inverse of the statement:

if Triangle ABC is not a right triangle with m(C) not =90° then The sides of triangle ABC are not such that |AB|^2=|BC|^2+|AC|^2

True


Contrapositive statement:

if The sides of triangle ABC are not such that |AB|^2=|BC|^2+|AC|^2  then Triangle ABC is not a right triangle with m(C)=90°


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