Assuming you want the inverse of f(x)=x²-2,
f(x)=x²-2
repalce f(x) with y
y=x²-2
switch x and y
x=y²-2
solve for y
x=y²-2
x+2=y²
√(x+2)=y
replace y with f⁻¹(x)
f⁻¹(x)=√(x+2)
the inverse is √(x+2)
<span>y=<span><span>x−5</span><span>−−−−</span>√3
</span></span>
<span><span>x=<span><span>y−5</span><span>−−−−</span>√3
</span></span></span>
If you're meaning a value between 11 and 20, write
1120 and put a line under the < and >, which indicates that x could also equal 11 or 20. x doesnt only have to be a value between 11 and 20, but it can equal the numbers too. It could be any variable, actually, so you could do any other letter if you wanted
Solution:
we have been asked to find the equation of the line that passes through (7, 4) and (4, -2).
First we will find the slope of the line using the formula
Plugin the given values we get
Now using the point slope form of a straight line
Plugin the values
Hence the correct option is a.
Let's define the following variable:
t = total time it takes to assemble a shelving unit together.
We then have the following equation:
1/5 + 1/3 = 1 / t
Solving the equation we have:
3t + 5t = 15
8t = 15
t = 1,875 hours
Answer:
the time it takes for worker A and worker B to assemble a shelving unit together is:
t = 1,875 hours
