Answer:
6x-18
Step-by-step explanation:
First we multiply everything in the parentheses by 3
3×2x=6x
3×(-6)=-18
And now we put it together-
6x-18
Answer:
105 meters
Step-by-step explanation:
Answer:
No.
Step-by-step explanation:
This is incorrect because the hot air balloon traveled up to 7500 feet. The distance descended cannot be greater than 7500 feet. Joe's expression tells us that the hot air ballon descended 10500 feet. He is incorrect because 10500 > 7500.
Answer:
a) The x value of the point where the two equations intersect in terms of a is 
b) The value of the functions at the point where they intersect is 
c) The partial derivative of f with respect to
is
and the partial derivative of f with respect to
is 
d) The value of
and 
e)
and 
f) equation
and 
Step-by-step explanation:
a) In order to find the
we just need to equal the equations and solve for
:

b) Since we need to find the value of the function in the intersection point we just need to substitute the result from a) in one of the functions. As a sanity check , I will do it in both and the value (in terms of
) must be the same.

and for
:

c) 

d) Then evaluating:


e) Substituting the corresponding values:


f) Writing the equations:


The difference between the sum of 1/2and 1/4 is1/2