We will have that the only graph that could represent the heigth of a rocket is graph A. Assuming that the x-axis represents the ground, then after some time it will go back to it.
Answer:
X= 2.5 Y= 3.5
Step-by-step explanation:
2X+3Y =15.5
replace either x or y with your second equation
(2*(6-y))+3y=15.5
now you only have one variable
12-2y+3y=15.5
y=3.5
now insert your y value into the second equation provided
x+y=6
x+3.5=6
so x= 2.5
you can check your answer by inserting these numbers into the equations and it should work
F is sometimes Positive and sometimes negative on the interval
Answer:
The diameter is: d = 5m
Step-by-step explanation:
We know that
Circumference of Circle = 2πr
Given that
The circumference of a circle = 5π
so the equation becomes
Circumference of Circle = 2πr
5π = 2πr
2πr = 5π
r = 5π/2π
r = 5/2 m
As we know that:
The diameter is twice the radius. i.e. d = 2r
Thus, the diameter is:
d = 2(5/2)
= 5 m
Therefore, the diameter is: d = 5m