We need to expand the square binomial and then multiply:
<span>3x(x + 3)^2
= 3x(x + 3)</span>(x + 3<span>)
= 3x(x^2 + 6x + 9)
= 3x^3 + 18x^2 + 27x</span>
Answer:
(3, 3 )
Step-by-step explanation:
Given the 2 equations
3x - y = 6 → (1)
6x + y = 21 → (2)
Adding the 2 equations term by term will eliminate y, that is
(6x + 3x) + (y - y) = (21 + 6), that is
9x = 27 (divide both sides by 9 )
x = 3
Substitute x = 3 into either (1) or (2) and solve for y
Using (2), then
(6 × 3) + y = 21
18 + y = 21 ( subtract 18 from both sides )
y = 3
Solution is (3, 3 )
The amount of paint is the volume of paint needed.
The amount of paint needed is 0.065312 cubic meters
<h3>How to determine the amount of paint needed</h3>
The volume of a hemisphere is:

Differentiate the above equation

The above equation represents the estimate of the amount of paint needed.
Where:
- r represents the radius (r = 52/2 m)
- r' represents the thickness (r' = 0.04 cm)
So, we have:



Express cm as m


Hence, the amount of paint needed is 0.065312 cubic meters
Read more about volumes at:
brainly.com/question/10171109
Answer:
T F T T.
Step-by-step explanation:
Let p and q be two statement
When the value of p is true and the value of q is true then the value of
is true.
When the value of p is true and the value of q is false then the value of
is true.
When the value p is false and the value of q is true then the value of
is false.
When the value of p is false and the value of q is false then the value of
is true.
Hence, the value of
is false when q is true and p is false.