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3 years ago

Which figures are shown

Mathematics

1 answer:

bogdanovich [222]3 years ago

3 0

Answer:

Point D, Segment CD, Ray CD

Step-by-step explanation:

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Expand the expression 10 (n-8)

Tcecarenko [31]

10n-80 is the answer

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3 years ago

Find the interior angle sum for the following polygon

Brrunno [24]

Answer:

Polygon Name

Number of Interior Angles

Sum of Interior Angles = (n-2) x 180°

Triangle

180°

Quadrilateral

360°

Pentagon

5

540°

Hexagon

720°

Step-by-step explanation:

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Find the sum. 5 2a a? + 2a + 1 + a2 + 4a + 3

Salsk061 [2.6K]

$\frac{2a}{a^2+2a+1}+\frac{5}{a^2+4a+3}$

Factor the denominators.

$\frac{2a}{\left(a+1\right)^2}+\frac{5}{\left(a+1\right)\left(a+3\right)}$

Adjust fractions based on LCM.

$\frac{2a\left(a+3\right)}{\left(a+1\right)^2\left(a+3\right)}+\frac{5\left(a+1\right)}{\left(a+1\right)^2\left(a+3\right)}$

Denominators are same, so add the fractions.

$\frac{2a\left(a+3\right)+5\left(a+1\right)}{\left(a+1\right)^2\left(a+3\right)}$

Expand the numerator.

$\frac{2a^2+11a+5}{\left(a+1\right)^2\left(a+3\right)}$

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3 years ago

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What is -4.5= a - 8

murzikaleks [220]

Answer:

Step-by-step explanation: -4.5=a-8

1. add 8 to both sides -4.5+8= 3.5

2. since you added 8 to negative 8 you get zero so it just goes away

3. ANSWER= 3.5=a

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1,100÷22. I know the answer but I am kinda struggling on how that is possible I checked it on paper but I got the wrong answer e

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Answer:

50 is the answer to this question

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