3 years ago

The price to mail a letter at the post office is $0.49 for the first ounce

Mathematics

1 answer:

trapecia [35]3 years ago

5 0

The letter weighted 7 ounces

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The function f(x) is shown below.

JulsSmile [24]

Answer:

$f(g(2)) = 2$

Step-by-step explanation:

Given

$x \to f(x)$

$-6 \to 1$

$-3 \to 2$

$g(x) = f^{-1}(x)$ --- inverse

Required

$f(g(2))$

For two functions f(x) and g(x) where f(x) and g(x)are inverse;

$f(g(x)) = x$

So, by comparison:

$f(g(2)) = 2$

4 0

2 years ago

Assume that f is a one-to-one function.

Pavlova-9 [17]

It is given in the question that f is a one-to-one function.

And for a one-to - one function,

$f(a)=b, \ then \ f^{-1} (b) =a$

So we will get

$a. If \ f(3)=15, \ then \ f^{-1} (15) =3
\\
b. If \ f^{-1}(6)=4, \ then \ f(4)=6$

3 0

3 years ago

Find the distance of a plane that travels at an average speed of 200mi/hr<br> for 8.5 hours

asambeis [7]

Answer:

1800 mi

Step-by-step explanation:

Recall that (distance) = (rate)(time).

Here, (distance) = (200 mi/hr)(8.5 hr) = 1800 mi

6 0

3 years ago

Write the equation of the line that passes through each pair of points (-2,0) (-1,-3)

Galina-37 [17]

Answer:

y = − 3 x − 6

Step-by-step explanation:

I hope this helps you

8 0

3 years ago

Can someone help me !

rosijanka [135]

Answer:

Step-by-step explanation:

It's the only one with an addition sign...... seems logical, let me know if you got it correct

7 0

3 years ago