The correct answer among the given choices is the first one:
“A graph shows Time in hours on the x-axis and Aida’s Distance from Tent
in miles on y-axis. The graph shows three straight lines. The first straight
line joins ordered pairs 0, 0 and 2, 4. The second straight line joins ordered
pairs 2, 4 and 8, 4. The third straight line joins ordered pairs 8, 4 and 9, 0.”
The given ordered pairs is in the format of (t, d) where t is time and
distance is d. Time will always be on the x-axis since it is always an
independent variable.
The first ordered pair should be (2, 4) since it took her 2 hours to
trek to the hilltop. From the given choices, only the 1st and 3rd
choice has this first ordered pairs so we are down to two choices.
Now the second ordered pair should be (8, 4) since she spent 6 hours at
the top but no change in distance. And only the 1st choice has this
value therefore it is the answer.
Step-by-step explanation:
The volume of a hemisphere is given by :
Taking differentiation,
So,
Put r = 21 m and dr = 0.03 cm = 0.0003 m
Hence, this is the required solution.
Answer:
Step-by-step explanation:
That will be 3a + 3b + 3c pounds of mortar.
as there will be 3a pounds of water and 3c pounds of cement.
A slope of 3 means the gradient is 3 so we get y=3x+c as derived from the linear formula. we then sub in x=2 and y=-0.5. this gives us c=-6.5.
The equation would be y=3x-6.5
I think this is right.
Answer:
1/10
Step-by-step explanation: