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Mathematics 8 Online
OpenStudy (foxythepirate0984):

Which phrase best defines a rectangle? A. a quadrilateral with no congruent sides B. a parallelogram with four congruent angles C. a parallelogram with four congruent sides D. a quadrilateral with exactly one pair of parallel sides @youngstudier @mahmood785123 i think its A

OpenStudy (mahmood786123):

I dont have a 5 in my username

OpenStudy (foxythepirate0984):

sorry i meant 6

OpenStudy (foxythepirate0984):

@campbell_st

OpenStudy (youngstudier):

It's the Master Chief O_O

OpenStudy (foxythepirate0984):

ermahgerd Halo!!!!!!!!!!!!!!!!

OpenStudy (foxythepirate0984):

I nevar noticed xD

OpenStudy (campbell_st):

can you tell me what congruent means..?

OpenStudy (foxythepirate0984):

GEOMETRY (of figures) identical in form; coinciding exactly when superimposed.

OpenStudy (anonymous):

It means the same i believe.

OpenStudy (mahmood786123):

Does anyone here even play Halo

OpenStudy (foxythepirate0984):

I dont have it but i heard of it

OpenStudy (campbell_st):

so identical or equal.... so what is type of angles does a rectangle have... are they all the same..?

OpenStudy (mahmood786123):

I have Halo 1 halo 2 Halo 3 Halo 4 Halo ODST Halo Reach Halo master chief collection

OpenStudy (anonymous):

i was looking up all the definitions. To be honest, i think a rectangle is a parallelogram. Because, it is a type of quadrilateral, and it has two pairs of congruent sides. Which, is try about a rectangle (the right and left are congruent, and top and bottom are)

OpenStudy (campbell_st):

is choosing A, you are saying that a rectangle has no equal or identical sides

OpenStudy (foxythepirate0984):

I think Its A too

OpenStudy (campbell_st):

read A again.... it says no congruent sides...

OpenStudy (foxythepirate0984):

Simplify the expression. –16 • 1/8 • 4 + 32 ÷ 2 A. 12 B. 8 C. –36 D. 24

OpenStudy (anonymous):

I do not think its a. i think its b. It has two pairs of congruent sides, which makes it a parallelogram. and, it has all 90 degree angles. (there not obtuse, or acute)

OpenStudy (foxythepirate0984):

Simplify the expression. 3 • (7 + 2)3 A. 243 B. 486 C. 2187 D. 19,683

OpenStudy (anonymous):

PEMDAS = order of operations. Do everything in this order: Parenthesis first Exponents Multiplication Division Addition Subtraction

OpenStudy (anonymous):

So, what do you get when you do whats inside the parenthesis?

OpenStudy (foxythepirate0984):

9

OpenStudy (anonymous):

Correct! Now, we have an exponent next. So, 9 x 9 x 9 equals?

OpenStudy (foxythepirate0984):

36

OpenStudy (anonymous):

No, were not adding. we are multiplying.

OpenStudy (foxythepirate0984):

729

OpenStudy (anonymous):

Correct! now, 729 x 3.

OpenStudy (foxythepirate0984):

2187

OpenStudy (anonymous):

Yes! Great job! So, your answer is?

OpenStudy (foxythepirate0984):

C

OpenStudy (foxythepirate0984):

What is the length of one side of a regular pentagon if its perimeter is 205 mm? __mm

OpenStudy (youngstudier):

@Mahmood786123 , I play Halo :D

OpenStudy (anonymous):

To find the perimeter, you add all sides. So, how many sides are in a pentagon?

OpenStudy (foxythepirate0984):

6

OpenStudy (anonymous):

No, close, but try again.

OpenStudy (foxythepirate0984):

7

OpenStudy (anonymous):

No...

OpenStudy (foxythepirate0984):

5

OpenStudy (anonymous):

Yes! So, if you add up all 5 sides to get the perimeter, you will get 205mm. Were trying to find 1 side, so we have to back track. 205 _ _ = ? Can you fill in the two blanks?

OpenStudy (anonymous):

One is the operation, the second one is what were dividing by.

OpenStudy (foxythepirate0984):

1025

OpenStudy (anonymous):

No.. 1 side can not be bigger then the perimeter.

OpenStudy (foxythepirate0984):

i added 5 sides up and it got me 1025

OpenStudy (anonymous):

Sorry, i must've confused you. Our perimeter, the total we get when we add 5 sides, is 205.

OpenStudy (youngstudier):

We did this one Foxy, do 205 divided by 5

OpenStudy (foxythepirate0984):

41

OpenStudy (youngstudier):

Yeppers :D

OpenStudy (anonymous):

Yes :)

OpenStudy (foxythepirate0984):

OpenStudy (youngstudier):

@MonKiwi

OpenStudy (youngstudier):

Add up the marbles

OpenStudy (foxythepirate0984):

Its C

OpenStudy (youngstudier):

yeppers. I gotta go eat, see ya!

OpenStudy (foxythepirate0984):

K

OpenStudy (foxythepirate0984):

The table shows the results of drawing one marble from a bag of colored marbles. Each marble was replaced after the outcome was recorded. If there are a total of 60 marbles in the bag, about how many of the marbles are orange? Color Number of Pulls red 5 green 4 orange 8 black 3 A. 8 B. 24 C. 12 D. 16 @KyanTheDoodle

OpenStudy (foxythepirate0984):

@TheSmartOne @KyanTheDoodle

OpenStudy (foxythepirate0984):

@KyanTheDoodle @Thesmarterone @TheSmartOne

TheSmartOne (thesmartone):

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