Answer:
B
Step-by-step explanation:
For y to be a function of x, x must only have one value for each y value.
In B, the number 10 comes up twice in the x row. Therefore, y is not a function of x.
Answer:
Option C.
Step-by-step explanation:
In this excercise we have to rest the altitude where they hiked on the second place, to the one were they departed from, in order to know how much they hiked.
So we do:
.
The correct option is option C.
Answer:
(f ∘ f)(–1) = –1
Step-by-step explanation:
To solve a composite function, rewrite using brackets and solve from inside to outside.
(f ∘ f)(x) is the same as: f[f(x)]
Given that x = –1 in (f ∘ f)(–1), we are solving for:
f[f(–1)] = ?
Solve for f(–1) inside the square brackets first.
f(x) = x³
f(–1) = (–1)³ Simplify.
f(–1) = –1 Solved the inside.
Substitute f(–1) = –1 into the square brackets.
f[f(–1)] = f[–1]
Now, we can solve the outside.
Solve with the equation of the function, x³.
f[–1] = x³
f[–1] = [–1]³ Substitute x = –1.
f[–1] = (–1)³ Simplify.
f[–1] = –1 Final answer
7RP: 1.3 sugar for one ounce. I came up with this by dividing 14 into 10 1/2
7NS: I'm just going to say -1/8. but I don't know for absolute sure, sorry
7EE: $65+$.80x=$125
7G: m<Q=150
7SP: There's a 50% chance that they will all land on heads.
Answer:
13p + 7
Step-by-step explanation:
