Mathematics
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Nicole:
http://prntscr.com/i64dlq
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Nicole:
@dude
Nicole:
I think the answer is 48...Am I correct?
dude:
Right, base times height
Nicole:
36?
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dude:
Right :P
Nicole:
1344?
Multiplied all the numbers
dude:
\[A=\frac{a+b}
2\cdot h\]
dude:
|dw:1517005112105:dw|
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Nicole:
The height in 12...14+8 is 22....22 divided by 2 is 11 and 11 times 12 is 132
132?
Nicole:
Damn a lot of work LOL
Nicole:
Am I correct?
dude:
\[A=\frac{8+14}2\cdot 12\\
=\frac{22}{2}\cdot 12\\
=11\cdot 12\\
=132\]
yes
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dude:
\(Parallelogram~Area= b\cdot h\)
Substitute values we know \(244=16\cdot h\)
Solve for h
dude:
Hint: Divide both sides by 16
Nicole:
244 divided by 16 is 15.25
16 divided by 16 is 1
Nicole:
16 times 15 is 240
Nicole:
Oh it is 14...Am I correct?
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dude:
Wait, why are you multiplying?
dude:
Yes it is 14
Nicole:
14 is the answer
Nicole:
This is 15...Correct?
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Nicole:
19 timed 15 is 285
dude:
Right
dude:
\[C=2\cdot π\cdot r\]
Nicole:
Can u plug in the numbers for me?
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dude:
r being radius, in order to find the radius we must divide the diameter by 2
Nicole:
What is the diameter?
Nicole:
What number?
dude:
|dw:1517005787297:dw|
Nicole:
|dw:1517005800509:dw|
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dude:
That is the diameter
Nicole:
OK so 60 divided by 2 is 30
Nicole:
So the radius is 30
dude:
Right, so we substitute into \(C=2\cdot π\cdot r\)
\[C=2\cdot π\cdot 30\]
Nicole:
Is it 60π
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Nicole:
Final answer
dude:
Right
Nicole:
So that would be 40?
dude:
Circumference can also be re-written as \(C=\pi \cdot d\)
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Nicole:
So am i right?
dude:
No
Nicole:
20 sorry
dude:
Right
dude:
\(20\pi\)
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dude:
\(C=2\cdot \pi \cdot r\\
C=2\cdot 3.14 \cdot 8.5\)
Nicole:
Ok gimme a sec to do the math :p
dude:
Sure :P
Nicole:
53.38
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Nicole:
So it would be 53.4?
dude:
Right
dude:
\(C=2\cdot \pi \cdot r\\
C=2\cdot 3.14 \cdot 7.8\)
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Nicole:
So it is 48.9
dude:
\(C=2\cdot \pi \cdot r\\
C=2\cdot 3.14 \cdot 18\)
Nicole:
U changed it
Nicole:
Nvm sorry....gimme a sec
dude:
The one I just put is for the most recent question you posted
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Nicole:
113
dude:
Both are right
dude:
Round the first one, though
Nicole:
Yea I got it....
Thanks for the help....I got a 100 on both.... Thanks again! :p
dude:
Ah okay, you're welcome :P