B is the answer have a g00d day
Answer: the answer should be x=-2
Answer:
We solve the equations g + e = 117 and e / g = 2 / 7; where g = number of gas mowers and e = number of electric mowers;
So, g = 117 - e and 2g = 7e;
Then, 2( 117 - e ) = 7e;
234 - 2e = 7e;
234 = 9e;
e = 234 ÷ 9;
e = 26;
g = 117 - 26;
g = 91;
Step-by-step explanation:
Answer:
Option D [
] in the list of possible answers
Step-by-step explanation:
For this problem you are supposed to use a calculator that allows you to do an exponential regression. There are many tools that can help you with that, depending on what your instructors has assigned for your class.
I am showing you the results of a graphing tool I use, and which after entering the x-values and the y-values in independent "List" forms, when I request the exponential regression to fit the data, I get what you can see in the attached image.
Notice that the exponential of best fit with my calculator comes in the form:

with optimized parameters:

Notice as well that since:

the exponential best fit can also be written:

and this expression is very close to the last option shown in your list of possible answers