C)-2/3is the answer because when your have 2/3+-2/3 will equal 0 in which justifies the additive inverse
Answer:
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Step-by-step explanation:
You can use protractors I think
Answer:
Step-by-step explanation:
Note that the cost function is
, which gives us the cost of electricity for x hours of consumption
a). The function ![c^{-1}(x)[tex] which is the inverse function, tells us given a cost, the amount of hours we can consume electricty. b) Consider the equation [tex]y=7.1+23\ln(x)](https://tex.z-dn.net/?f=c%5E%7B-1%7D%28x%29%5Btex%5D%20which%20is%20the%20inverse%20function%2C%20tells%20us%20given%20a%20cost%2C%20the%20amount%20of%20hours%20we%20can%20consume%20electricty.%20%3C%2Fp%3E%3Cp%3Eb%29%20Consider%20the%20equation%20%3C%2Fp%3E%3Cp%3E%5Btex%5Dy%3D7.1%2B23%5Cln%28x%29)
To find out the inverse function, we interchange the labels of x and y and solve for y, that is
when solved for y we have

So the inverse function is given by
.
c) We will use the inverse function to find the amount of hours the customer can use eelectricity. It is simple obtained by evaluating the inverse function at the desired cost (i.e
)
that is

that is, the custome can consume at most 1.41 hours of electricity.
The zeros of the equation are A) x = -5 and x = 2
Step-by-step explanation:
The equation given is

Which is a second-order equation written in the form

where here:
a = 1
b = +3
c = -10
The solutions (the zeros) of an equation wirtten in this form can be found by using the following:

Substituting the values of a, b and c for this equation, we find:

Which gives two values:
x = -5
x = 2
Therefore, these values are the zeros of the equation, so the correct option is
A) x = -5 and x = 2
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