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3 years ago

9

What's rotational symmetry? Can u give a full on explanation? PLS

1 answer:

prohojiy [21]3 years ago

4 0

There is rotational symmetry if there is a center around the object that is turned or rotated a certain amount of degrees and the shape isn't changed.

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How do u simplify an expression?<br> Plz, try to make it steps?

krok68 [10]

Here are the basic steps to follow to simplify an algebraic expression:<span>remove parentheses by multiplying factors.
use exponent rules to remove parentheses in terms with exponents.
combine like terms by adding coefficients.
<span>combine the constants.</span></span>

5 0

3 years ago

I know the answer just need the step-by step work

Anna71 [15]

Answer:

x^2 +18x +80

= x^2 + 10x + 8x +80

= x(x+10) + 8(x+10)

= (x+10)(x+8)

Hope this help!

Good luck!

6 0

2 years ago

If there were 49 cars in a line that stretched 528 feet, what is the average car length? assume that the cars are lined up bumpe

lakkis [162]

If there were 49 cars in a line that stretched 528 feet, what is the average car length? assume that the cars are lined up bumper-to-bumper

Answer: We are given there are 49 cars

Also these 49 cars are in a line stretched 528 feet.

Now the average length of the car is:

Average length = $\frac{(length-covered-by-49-cars)}{Number-of-cars}$

= $\frac{528}{49}=10.78$

Therefore, the average length of car is 10.78 feet

6 0

3 years ago

I am wondering how the different triangles could be different, can anyone explain?

jekas [21]

I don’t really understand what your question is

4 0

3 years ago

Read 2 more answers

Find the slope of the graph

olga55 [171]

3/2 since you move 3 spaces horizontally (x) and 2 spaces up (y)

3 0

2 years ago