To find the perimeter of a triangle, you add all the sides.
(2x +1) + (3x+2) + (x+3)
next find all the common variables
2x, 3x, and x
add them together to get
6x
Add 1,2, and 3
6
so your answer is 6x +6
Hope this helps! :)
To find f(5) substitute in the equation the x by 5 and evaluate:
Then, f(5) is 17
Answer:
a?
Step-by-step explanation:
Step-by-step explanation:
n(A) is the number of elements is A, sometimes written |A|. I count 7. n(A)=7
13 is among the elements of A, so 13 ∈ A is TRUE
26 is among the elements of A, so 26 ∉ A is FALSE
10 isn't in A, so 10 ∉ A is TRUE
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