Answer:
A
Step-by-step explanation:
Basically when we have x in the denominator, we don't want the denominator to be 0 as the value of f(x) will then be undefined. Therefore the answer is A.
So just pick all the numbers greater than -7 not including -7
greater meaning more positive
-10, no
-7.2, no
-7, no
-6.9, yes
6.5 yes
9 yes
soluion set is {-6,9,6.5,9}
3rd option is answer
<u>Answer:</u>
No solution
<u>Step-by-step explanation:</u>
Suppose the number is so ().
Now is equal to twice a smaller number plus 3. Assuming the smaller number as , we can write it as:
--- (1)
Also, the same number is equal to twice the sum of smaller number and 1:
--- (2)
Now for both of these equations, we need to find a point which satisfies them.
For example, for equation 1, take which means so the solution will be (1, 3).
Substituting the same value of y here in equation 2:
so the solution for this will be (2, 5).
It means that there is no such point which can satisfy both the equations. Hence, there is no solution possible for these two equations.
Answer:
2.5 hours/3 hours
Step-by-step explanation:
If it takes the beginner 6 hours and experienced tinter 3 hours working together it should take roughly 2.5 hours to 3 hours because the time would be cut in half.