Someone solve all of these for 30 points, I will report if you do not answer and just spam something.

Step-by-step explanation:

1. We know that the sum of angles in a triangle is 180, so, we know that two of the angles are 90 and 57, so let's add those together: 90+57=147. Now let's subtract 147 from 180. 180-147=33, so the missing angle is 33.

2. I don't know this one... maybe a equalaterial triangle?

3. 44.9 degrees, because the sum of the angles would equal 180.

4. No, it is unable to create a triangle.

5. A unique triangle

y=mx+b

step-by-step explanation:

m slope, b y-intercept

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.