We are given two sides of a triangle that are 2 and 5 and the angle between them is pi/3 or 60 degrees. In this case, we can use the cosine law to relate the given dimensions and angle. The cosine rule goes c2 = a2 + b2 - 2abcos C; Substituting, c2 = 4 + 25 - 2*2*5*cos pi/3 ; c2 = 19; c = sqrt 19 = 4.36 units.
What is 2.4*10^8 - 3.0*10^8
-60000000
9 chairs;
there would have to be nine chairs at a table for it to have the most chairs because in this case, even if the remaining 7 chairs were all located at one of the other tables, then the table with the 9 chairs would still have the most chairs.
X=11
-5(x+1) = -3(2x-2)
distribute
-5x-5= -6x+6
both +6x
x-5=6
plus 5 on both
x=11
If they meant 10 sets of push-ups, then she did 45. if they just meant 10 push-ups, it is 25.
