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NationalTutoringObservatory
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MathEd-PII

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volunteer
does that make sense?
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student
ok then would we do cos(43) = 38.61 /x?
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volunteer
yes! However, I would suggest doing sin 43=36/x since it is more precise since you already know those values are exact
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volunteer
because when rounded, the answer when it comes to dividing can be a bit off, so by using the exact numbers provided, you can ensure that the answer is more precise
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student
ok
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student
52.8
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volunteer
yess - except remember that it wants 2 decimal places! so it would be 52.79!
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volunteer
great job!!
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student
oh cause when I calculated it said 52.78
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volunteer
well when you calculate it fully, you have to look at the 3rd decimal since it can affect your answer
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volunteer
so It was 52.786
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volunteer
and since 6 means rounding up
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volunteer
then the 8 goes up by 1
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volunteer
so it would be 52.79
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volunteer
does that make sense?
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student
yes
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student
so x = what again
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volunteer
x=52.79
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student
ok
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student
and y = 38.61
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volunteer
yess
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student
ok
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student
I can do 1 more before my computer dies
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volunteer
sounds good!
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volunteer
what are the following questions?
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student
oops
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student
lem'me get that
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volunteer
dw lol
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volunteer
ok so first we can figure out m<B
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volunteer
do you know how to find it?
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student
uuuuuuuhh nope
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volunteer
well like we did before, there 180 degrees in a triangle
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volunteer
since one angle is 90 and another is 75
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volunteer
m<B=180 - (75+90)
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student
got it
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volunteer
great! do you want to move on the problem b?
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student
m<B = 15 degrees
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volunteer
yes!!
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volunteer
wanna find bc now?
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student
yea
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volunteer
sounds good
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volunteer
ok so we can give it a variable name
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volunteer
BC=x
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volunteer
now we can take the angle 75 degrees
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student
ok
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volunteer
and use an operation that has both its opposite and adjacent
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student
Tangent
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volunteer
yess
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volunteer
so tan 75 = x/23!
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volunteer
so what would x be?
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student
x = 85.84
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volunteer
yes!!!!!
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volunteer
and since x=BC
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volunteer
BC=85.84!!!
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volunteer
now we can move on to AB
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volunteer
I'll make AB=y
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volunteer
so we can use 75 again
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volunteer
what operation uses adjacent and hypotnuse?
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student
cos
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volunteer
yess
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volunteer
so what would your equation be?
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student
cos (75) =23/y?
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volunteer
yes!!!
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student
yayyy!
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volunteer
so what would y be?
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student
y = 88.87
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volunteer
YESSSS great job!!!!
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volunteer
and since y=AB
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volunteer
AB=88.87
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volunteer
congratulations Pat did all of them!!
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[ { "pii_type": "PERSON", "surrogate": "Pat", "start": 16, "end": 19 } ]
student
thank you soo much!!
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volunteer
no problem I'm glad I could help!!
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volunteer
make sure to charge your computer haha
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student
I will!
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student
byyee!!
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volunteer
bye!!
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volunteer
hey
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volunteer
what do u need help with
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student
Hi! I need a bit help with this
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volunteer
ok
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volunteer
so first of all do u know how to rewrite a negative exponent
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volunteer
for example like 2^-1
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student
mhm
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student
so for a
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student
its all diff variables
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volunteer
yea
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volunteer
we can work through it together in steps
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student
oh so i do
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volunteer
im gonna write it below the screenshot
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student
-4 times 2
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student
6 times 2
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student
3 times 2?
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volunteer
yea
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volunteer
don't forget the coefficient though
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student
mhm
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volunteer
do you know the next step after this
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student
i solved it
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student
give me one sec Emily writing on paper
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[ { "pii_type": "PERSON", "surrogate": "Emily", "start": 16, "end": 21 } ]
volunteer
ok
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student
ok next one
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