Suppose Sine (x) = negative three-fifths and cos(x) < 0. What the value of cos(2x)?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

What is the sum of these mixed numbers 4 2/3+ 3 1/9