Answer:
(a) 3
Step-by-step explanation:
Calculate the slope m of the line given using the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (0,3) and (x₂, y₂ ) = (3, 2)
m = = -
given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 3 → (a)
Answer:
Mixed fraction = whole × denominator + numerator.
this formula converts mixed to improper fraction.
So, 1 × 3 + 1 = 4 is numerator.
Denominator is 3 which is same.
So, answer is
A.
Answer:
surface area = 245.04 cm² (nearest tenth)
Step-by-step explanation:
Surface area of a closed cylinder =
Given:
⇒ surface area = 2 × × 3² + 2 ×
× 3 × 10
= 78
= 245.04 cm² (nearest tenth)