Answer:
r = 3.
Step-by-step explanation:
16 = 10 + √(3r + 27)
√(3r + 27) = 6
Square both sides:
3r + 27 = 36
3r = 36 - 27 = 9
r = 3.
Check the result:
Left side of the equation = 16
Right side = 10 + √(9 + 27)
= 10 + √36 = 16
Answer:
y=3x-1/5
Step-by-step explanation:
we have to move 1/5 to the other side
Answer:
The area of the rectangle in polynomial form is 
Step-by-step explanation:
Given
Shape: Rectangle


Required
Area of the rectangle
The area of a rectangle is calculated as thus;

By substituting
for height and
for width; This gives

Expand the bracket

Open each bracket



Hence, the area of the rectangle in polynomial form is 
The formula is -16t^2 + 122t + 99
Solving for t gives t = 8.36 seconds
Its C