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3 years ago

Which of the following polygons has five lines of symmetry?

Mathematics

2 answers:

Natali [406]3 years ago

7 0

PENTAGON!! PENTA=5 HEPTA=7 TRI=3

Ronch [10]3 years ago

3 0

Answer:

pentagon have 5 sides, 5 symmetry lines.

So your answer is Option C.

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Which of the numbers below is less than −72? Select all that apply.

algol [13]

Answer:

option d

Step-by-step explanation:

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3 years ago

Algebraic expression and identity 1)simplify the following (3a+b)3 +(3a-b)3

mylen [45]

Answer:

$(3a+b)^3+(3a-b)^3=54a^3+18ab^2$

Step-by-step explanation:

Given: $(3a+b)^3+(3a-b)^3$

Formula: $x^3+y^3=(x+y)(x^2-xy+y^2)$

$(x+y)^2=x^2+2xy+y^2$

$(x-y)^2=x^2-2xy+y^2$

$x\rightarrow 3a+b$

$y\rightarrow 3a-b$

$\Rightarrow (3a+b+3a-b)((3a+b)^2-(3a+b)(3a-b)+(3a-b)^2)$

$\Rightarrow (6a)(9a^2+b^2+6ab-9a^2+b^2+9a^2+b^2-6ab)$

$\Rightarrow (6a)(9a^2+3b^2)$

$\Rightarrow 54a^3+18ab^2$

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3 years ago

I'm.not understanding this at all please help

alekssr [168]

Http://rss2search.com/nohost.php?url=www.edhelperblig.com/cgi-bin/socstud.cgi

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3 years ago

Can yall check my answer ?

Rzqust [24]

Answer:

its good :)

Step-by-step explanation:

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3 years ago

Read 2 more answers

The histogram shows the results of a survey that asked people how many hours of sleep they get each night. Which

Maru [420]

The true statements are

The mean is near the median.

The mean is the best measure of center.

The five-number summary is the best measure of variation

<h3>What is a histogram? </h3>

A histogram is used to represent data graphically. The histogram is made up of rectangles whose area is equal to the frequency of the data and whose width is equal to the class interval.

If the mean is greater than the median, the histogram would be skewed to the right. If the mean is less than the median, the histogram would be skewed to the left.

To learn more about histograms, please check: brainly.com/question/14473126

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2 years ago