Step-by-step explanation:
<u>1</u><u> </u>*9^2 + 4
3
<u>1</u><u> </u>* 81 + 4
3
<u>1</u><u> </u>* 85
3
<u>85</u>
3
=28
Answer:
C
Step-by-step explanation:
hope I'm right sorry if I'm not lol.
Δ MNJ and Δ KNL
MN = NK (N being the midpoint of MK)
JN = NL (N being the midpoint of JL)
∠MNJ = ∠ KNL ( Vertical angles or opposed angles)
Then Δ MNJ = Δ KNL as per the theorem SAS
Work in rates per hour. These rates can then be added to form an equation
1/13 + 1/10 = 1/x where x is the time for both working together
multiply thru by 130x:-
10 x+ 13 x = 130
x = 130/23 = 5.65 hours or about 6 hours 39 minutes