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Mathematics 18 Online
OpenStudy (anonymous):

Picture of question is now up help with problems 3-5 :))

OpenStudy (anonymous):

OpenStudy (anonymous):

For problem #3: \[ (4x-10)+8x+(2x+50)=180\implies\\ 14x-10+50=14x+40=180\implies\\ 14x=180-40=140\implies\\ x=10 \]Plugging this back in for \(\text m\angle 3\): \[ \text m\angle 3=2(10)+50=20+50=70 \]

OpenStudy (anonymous):

okay 3: (4x-10) + (8x) + (2x+50) = 180

OpenStudy (anonymous):

so ill do 4

OpenStudy (anonymous):

Sounds good

OpenStudy (anonymous):

3x-30<90 because its acute it less that 90

OpenStudy (anonymous):

thanks @LolWolf can you help with 5?

OpenStudy (anonymous):

solve for x add 30 to both sides: 3x< 120 divide by 3 on both sides x<40 so x must be less than 40, that is the restriction

OpenStudy (anonymous):

thanks @TAKEBACKMATH

OpenStudy (anonymous):

angles ABD + angle dbc = 90 68 + X = 90 -68 -68 x = 22

OpenStudy (anonymous):

no prob

OpenStudy (anonymous):

thanks :)))

OpenStudy (anonymous):

wait @TAKEBACKMATH im confused why did you leave alot of space there? did you want me to fill in the balnks?

OpenStudy (anonymous):

for 5 21'40'34''

OpenStudy (anonymous):

how'd you get that answer?

OpenStudy (anonymous):

@frazerdon how'd you get that?

OpenStudy (anonymous):

90'00'00'' - 68'19'26''

OpenStudy (anonymous):

did you get 90'00'00" from angle ABC?

OpenStudy (anonymous):

yes because it's a right angled triangle

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