Answer:
factor the expression =2y^2 (7y+1) or simplify it=14y^3 + 2y^2
Step-by-step explanation:
It is always isosceles because it can be proved as follows:
The perpendicular bisector dissects the triangle into two, and it is the common side. Then each side of the bisector is 90 degrees, and the bisected to two equal sides, so the two dissected triangles are congruent, hence the original triangle is isosceles.
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
n = 1200
x = 32% of 1200
So, 
We need to find 95% confidence interval.
so, z = 1.96
So, margin of error would be

So, Interval would be

Hence, Option 'c' is correct.
Answer:
No solutions
Step-by-step explanation:
31 times any positive number cannot be a negative number.