Answer:
12
Step-by-step explanation:
Answer: $68.46
Step-by-step explanation: You just have to multiply 4.89 by 14 to get the answer.
Just move all terms to the left side and set equal to zero. Then, set each factor equal to zero.
a = 5,1
Answer:
it's not a right triangle
Step-by-step explanation:
it doesn't have a 90° angle and it just doesn't look like a right triangle in general
Answer:
f
−
1
(
x
)
=
9
x
−
18
Explanation:
To find the inverse or
f
−
1
(
x
) of a function we solve the equation for x
So in this example, we can start by subtracting
2 from both sides: y
−
2
=
1
9
x
+
2
−
2
Next we multiply
9 to each side to isolate the variable x 9
(
y
−
2
)
=
1
x
9
⋅
9
9
y
−
18
=
x
Since the function of a line is written in terms of y we can simply switch x and y and rewrite the equation to get: y
=
9
x−
18 or f
−
1
(
x
)
=
9
x
−
18