1 answer:
Answer:
Step-by-step explanation:
this is exactly the same as the 1st one, just they put it in a different orientation. sooo use law of cosines , where
QR = c
a = 12
b = 23
cos(120) = cos (P)
c = sq rt [ a^2+b^2﹣2*a*b*cos(P) ]
QR = sq rt [ 12^2 + 23^2 - 2* 12*23*cos(120) ]
QR = sq rt [ 144 + 529 - 552 * (-0.5 0 ]
QR = sq rt [ 673 + 276 ]
QR = sq rt [ 949 ]
QR = 30.8058
rounded to nearest 10th is
QR = 30.8 :)
You might be interested in
9.) 3
Answer:
117
Step-by-step explanation:
12x+30+4
Answer:
0.10
Step-by-step explanation:
If together the ball and bat cost $1.10 and the bat cost one more dollar than the ball than you would have too subtract $1 from what the ball and bat together. so 0.10 would be left
Answer:
its fifteen fiths
Step-by-step explanation:
