There’s 12 boys and 18 girlszzzzzzz
Answer:
x<4
Step-by-step explanation:
x+36 is less than 40
x+36<40
Subtract 36 from both sides
This equation means, that in order for the equation to be true, x must be less than 4.
<h2>
Answer:</h2>
the other factors are: (x+3) and (2x−3)
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Pick two points
(2,0) and (3,2)
Then use the slope formula
m= (y2-y1)/(x2-x1)
= (2-0)/(3-2)
= 2/1
=2
Answer:
the rate of change of the area is Ra= 80 mm² per second
Step-by-step explanation:
the area of a rectangle (A) is
A = L * W , L= length and W= width
if the width remains constant the change in the area is only due to the change in length , thus:
ΔA = Δ( L * W ) = W * ΔL , where ΔA represents the change in area and ΔL represents the change in length
ΔA = W ΔL
denoting Δt as the time required to change, and dividing both sides by Δt
ΔA/Δt = W ΔL/Δt
where Ra=ΔA/Δt = rate of change of the area and RL=ΔL/Δt rate of change of the length.
thus
Ra = W * RL
replacing values
Ra = W * RL = 8 mm * 10 mm/second = 80 mm² /second
