In a 30-60-90 triangle, how many sides do you need to know in order to determine the remaining sides?

2
0
1
3

  1

Step-by-step explanation:

The side ratios of a 30-60-90 triangle are 1 : √3 : 2, so any one side is sufficient to determine the other two.

Additional comment

The length of one side is sufficient, but you do need to know which side it is. You cannot just say, for example, "one side is 5 units." Rather, you must say something like "the shortest side is 5 units", or "the side between the largest angles is 5 units" so its relation to the other sides is known.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.