The ratio of catfish to trout in the local pond is 2 to 5. if there are 300 catfish in the pond, how many trout are there?

their would be 750 because 300 divided by the original 2 is 150 if you multiply the 5 by 150 you get 750.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify