Answer:
x - 7
Step-by-step explanation:
Let's let x = 4 and see which one would be different
x - 7 = 4 - 7 = -3
7 + (-x) = 7 + -4 = 3
-x + 7 = -4 + 7 = 3
7 - x = 7 - 4 =3
As you can see, the top answer would be negative while all the rest are positive. This is because, in that case, the negative sign was attached to the 7 instead of the x.
Answer:
2√2
Step-by-step explanation:
Remember that for a right triangle, if the two legs are the same length "x", then the hypotenuse will always be "x√2"
Here each leg has a length of 2, so the hypotenuse is equal to 2√2
Both domain and range are both all real numbers
1. 77 mph
We already know they travel 38.5 miles in 30 minutes. So we multiply 38.5 x 2 because 30 minutes is 1/2 of an hour. 38.5 x 2 = 77
5. 8.5 minutes (8 minutes and 30 seconds) per mile
We have to divide 25.5 by 3 to know how many minutes it takes Jerry to run one mile.
8. 34.06
This one is kinda easier. We already know 34 is the whole number. 6 divided by 100 is 0.06, so we simply add 34 + 0.06
Answer:
If a function is given in the form of f(x) = ax² + bx + c, then value of x is "input" and the value of the given function for x will be "output". Means if we put the value x = 2 then 2 is the input and f(2) will be the output of the function.
Step-by-step explanation:
