Answer:
84
Step-by-step explanation:
f(x) = 3x^2 + 2x – 1
Let x=5
f(5) = 3(5)^2+2(5) -1
= 3*25 +10-1
= 75+10 -1
= 85 -1
Option (A) represents the function and its inverse of a function option (A) is correct.
<h3>What is a function?</h3>
It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have a function and inverse of a function shown in the picture.
Checking for option (A):

Taking f(x):

To find the inverse of a function interchange the x and y variables:
f(x) → x
x → g(x)

Solving:
4x = g(x) + 10
g(x) = 4x - 10
Similarly, we can find the inverse of a function.
Thus, option (A) represents the function and its inverse of a function option (A) is correct.
Learn more about the function here:
brainly.com/question/5245372
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Answer:
A) Leg
Step-by-step explanation:
In a right triangle, the side that is opposite of the right angle is the hypotenuse. It is also the longest side of the triangle.
Since side 'a' makes up a right angle and it's a shorter piece, it is a leg of the triangle.
Hope this helps.
Answer:

Step-by-step explanation:
hello
as an apple costs a pence and a banana b pence
3 apples + 5 bananas cost 3*a + 5*b
hope this helps
There are 342 inches, 28.5 feet, and 9.5 yards