The cost never decreases as it is always going up based upon your x-value and your degree. Mark me as brainliest please.
I don’t like billies music but i like her as a person
To start we need to put all the b's on the same side.
4b + 6 = 2 - b + 4
To move the b on the right side to the left side, add b to both sides.
4b + 6 + b = 2 - b + 4 + b
Simplify. 4b + b = 5b and -b + b = 0 so...
The equation is now: 5b + 6 = 2 + 4
Now move 6 to the right side so we can isolate b.
5b + 6 - 6 = 2 + 4 - 6
Simplify.
5b = 0
Solve for b.
b = 0/5
b = 0
Answer: x = 7, x = -1
Step-by-step explanation: Move the term to the left side
x^2 + 2x - 7 = 8x
x^2 + 2x - 7 - 8x = 0
Combine like terms
x^2 + 2x - 7 - 8x = 0
x^2 - 6x - 7 = 0
x^2 - 6x - 7 = 0
a = 1
b = -6
c = -7
x = -(-6) + (-6)^2 - 4 x 1(-7)/ 2 x 1
Evaulate the Exponent
Multiply the numbers
Add the numbers
Evaluate the square root
Multiply the numbers x = 6 ± 8/2
To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.
x = 6 + 8/2
x = 6 - 8/2
Rearrange and isolate the variable to find each solution
x = 7
x = -1
Answer:
Rate of increase of radius = 0.0064 ft/sec
Rate of increase of surface area = 1.61 
Step-by-step explanation:
Given that:
Rate of change of volume of a spherical balloon = 8 cubic feet per minute
Radius, 
= 10 feet
To find:
The rate of change of radius at this moment and rate of change of surface area at this moment?
Solution:
First of all, let us have a look at the formula:
Now, differentiating the volume and area, we get:
