Combine the following sets of terms.

Mathematics

2 answers:

earnstyle [38]4 years ago

5 0

(2x^2+6x+10)+(4x^2+2x+3)

2x²+4x² is 6x²

6x+2x is 8x

10+3 is 13

Answer is 6x²+8x+13

Usimov [2.4K]4 years ago

3 0

(2x² + 6x + 10) + (4x² + 2x + 3)

Remove the parentheses and bring like terms together ( as there's a positive outside the parentheses the terms inside keep their signs):-

= 2x^2 + 4x^2 + 6x + 2x + 10 + 3

= 6x^2 + 8x + 13 answer

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icang [17]

There is a probability of 22.66% that their average catch is less than 31.5 pounds

<h3>What is z score?</h3>

The z score is used to determine by how many standard deviations the raw score is above or belaw the mean. It is given by:

z = (raw score - mean)/ (standard deviation ÷ √sample)

Given that, mean = 32, std = 4, sample = 36, hence:

For 31.5:

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2 years ago

The 3 by 3 grid below shows nine 1 cm × 1 cm squares and uses 24 cm of wire. What length of wire is required for a similar 20 by

Nady [450]

Answer:

840

Step-by-step explanation:

Hi there!

Usually, this kind of problem asks us the perimeter rather than the area. But when talking on this grid on how many cms are necessary to construct one made up of 9 squares 1cm x1 cm. We need to check one thing: Some line segments will be used twice. So this is not a classical perimeter question.

1) So we either manually and carefully count it avoiding not doing it twice the same common line segments.

Or.

2) By just applying an algorithm, Where n is the <em>nxn</em> grid

$n(n+1)+n(n+1)=Length \:of \:the \:wire$