The domain of the function is (-∞,∞) and the simplified expression is x²-6x-40 .
A function's domain and range are its constituent parts. A function's range is its potential output, whereas its domain is the set of all possible input values. Range, Domain, and Function. A is the domain and B is the co-domain if a function f: A B exists that maps every element of A to an element in B. 'b', where (a,b) R, provides the representation of an element 'a' under a relation R. The set of images is the function's range.
The given functions are
f(x)=6x+24
g(x)=x²-16
Now we have to find (g-f)(x) .
(g-f)(x)=x²-16-6x-24
or,(g-f)(x)=x²-6x-40
or,(g-f)(x)=x²-10x+4x-40
or,(g-f)(x)=x(x-10)+4(x-10)
or,(g-f)(x)=(x-10)(x+4)
So the domain of the function (g-f)(x) are the values for which the function exists. we can see that the function exists for all values of x.
Domain in set builder notation={x|x∈R}
Domain in interval notation=(-∞,∞)
To learn more about domain and range:
brainly.com/question/28135761
#SPJ9
Answer:
a
Step-by-step explanation:
Step-by-step explanation:
Step 1: Set up the formula for the surface area of a regular pyramid.
SA =
where :
- SA equals the total surface area of the pyramid,
- p equals the perimeter of the base,
- h equals the slant height of the pyramid
- B equals the area of the base.
Step 2: Plug the perimeter of the base into the formula
you can calculate the perimeter by multiplying the length of one edge by the number of edges.
Step 3: plug the value of the slant height into the formula (it is not the perpendicular height)
Step 4: find the area of the base (depend on the shape of the base)
Hope it will find you well.
Answer:
The least common denominator is 21.
Step-by-step explanation:
First, you must find the least common factor of the two:
3: 3, 6, 9, 12, 15, 18, <em><u>21</u></em>, 24, 27, 30
7: 7, 14, <em><u>21</u></em>, 28, 35, 42, 49, 56, 63, 70
Second, you must increase the fractions:
×
=
×
= 
Answer:
The actual width would be 9.75 feet. (I think).
Step-by-step explanation:
If two inches represents three feet, then two inches also represents thirty-six inches. You would then have to set up the proportion
. Solving that proportion would get you an answer of 117 inches, equal to 9.75 feet. I hope this helps! :)