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2 years ago

2(4p - 3) + (p + 7) how to simplify

Mathematics

2 answers:

Dmitry_Shevchenko [17]2 years ago

8 0

Answer:

9p-1

Step-by-step explanation:

2(4p-3) + (p+7)

8p - 6 + (p+7)

8p+p+ (-6)+7

9p+-1

9p-1

Norma-Jean [14]2 years ago

6 0

Answer:

9p + 1

Step-by-step explanation:

2(4p - 3) + (p + 7)

Expand,

8p - 6 +p + 7

Group like terms,

8p + p - 6 + 7

Add the similar elements,

9p + 1

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aev [14]

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4 years ago

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Are the triangles similar? If so, state the similarity and the postulate or theorem that justifies your answer.

kow [346]

Answer: The triangles are not similar.

Step-by-step explanation:

Two figures are similar simply if they have the same shape, but not necessarily the same size. In a more mathematical sense, similar figures have the same angle measures and proportionate side lengths.

<em>For reference, side lengths are proportionate when the ratios between corresponding/matching sides are the same.</em>

Since we do not have any angles, we will try using the SSS Similarity Theorem, which states that if all three sides of both triangles are in proportion, then the triangles are similar. We will first list all the side lengths and match corresponding ones.

$\triangle ABC \rightarrow 18,20,32\\ \triangle UVT \rightarrow 14,15,24$

Since we matched corresponding sides, we can now check whether they have the same ratio).

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2 years ago

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MAXImum [283]

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Step-by-step explanation:

Step 1 :

Given,

Percentage of email that comes back undelivered = 3%

Number of email the editor sends out = 12181

Number of email predicted by the editor which is undelivered = 433

Step 2 :

To compute the actual number of emails undelivered we need to compute 3% of the emails that is actually sent.

= 3% of 12181 = 0.03 * 12181 = 365.43 which is 366 rounded to the closest integer.

Step 3:

Hence we can conclude that the prediction of the editor is not correct as only 366 undelivered notices are received back as against his prediction of 433 notices.

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4 years ago