Can someone please help on question 4?
I will give you brainliest

The area of the right  circular cone is:

Step-by-step explanation:

Given

Using the formula to determine the right circular cone

substituting h = 13, and r = 8.5

cm²

Therefore, the area of the right  circular cone is:

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

2nd one in the first row is correct