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3 years ago

A. 37B. 53C. 127D. 217

Mathematics

1 answer:

liberstina [14]3 years ago

7 0

X = 127
Trust me, this was the one thing I was good at in school

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1. 108 identical books have a mass of 30 kg. Find

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Answer:

i) around 41.7 kg

ii) 72 books

Step-by-step explanation:

i) if 108 books are 30 kg then how much is the mass for 150? You cross multiply so 150 multiply by 30 and 108 multiply by x (the unknown mass). you will get 4500=108x and then 4500/108 is the unknown mass.

ii) use the same way as above.

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3 years ago

Is the term (X + 2) a factor of the polynomial shown below?

QveST [7]

The correct answer is: No, the remainder is -114

Further explanation:

In order to check whether the given term is a factor of given polynomial or not we will put

x+2=0

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Given

$f(x)=x^3 - 10x^2 + 27^x - 12\\f(-2)=(-2)^3-10(-2)^2+27(-2)- 12\\=-8-10(4)-54-12\\=-8-40-54-12\\=-114$

As the remainder is -114, the term x+2 is not a factor of given polynomial

The correct answer is: No, the remainder is -114

Keywords: Polynomials, expressions

Learn more about polynomials at:

#LearnwithBrainly

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A. 37B. 53C. 127D. 217​

A. 37B. 53C. 127D. 217