Answer:
<em>15 + 53.45x = 55.95x</em>
Step-by-step explanation:
<em>We want to know in how many months BOTH COSTS WOULD BE SAME. So we EQUATE the expressions for both. This equation can be solved for x to find the number of months for which the internet service would cost the same.</em>
<em />
Answer:
Step-by-step explanation:
Given
Call out fee = £35
Per hour = £30
Time = 2 hours
Per light switch = 12 minutes
Required
Cost of wiring a house with 10 light switches
First, the minutes on the 10 light switches should be calculated'
If time per light switch is 12 minutes;
then
Time for 10 = 12 minutes * 10
Time for 10 = 120 minutes
[Convert to hours]
Time for 10 = 2 hours
Next is to calculate the total time spent altogether
Time = 2 hours + Time spent on 10 light switches
Time = 2 hours + Additional 2 hours
Time = 4 hours
Total Charges = Call out fee + Charges per hour * Time
Total Charges = £35 + £30 * 4
Total Charges = £35 + £120
Total Charges = £155
Answer:
A) f^-1(x)=(x-8)^3+2
Step-by-step explanation:
To find the function inverse, switch the x with y and solve for y.
![y=\sqrt[3]{x-2}+8 \\\\x=\sqrt[3]{y-2}+8\\\\(x-8)^3 = y-2\\\\ (x-8)^3 + 2 = y](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7Bx-2%7D%2B8%20%5C%5C%5C%5Cx%3D%5Csqrt%5B3%5D%7By-2%7D%2B8%5C%5C%5C%5C%28x-8%29%5E3%20%3D%20y-2%5C%5C%5C%5C%20%28x-8%29%5E3%20%2B%202%20%3D%20y)
Answer:
The solutions for x are 
and 
.
Step-by-step explanation:
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
.
This polynomial has roots 
such that 
, given by the following formulas:
2x² - 5x - 12 = 0
This means that 
Solution:
The solutions for x are and .
Answer:
huh what do you mean
Step-by-step explanation:
