Answer:
49
Step-by-step explanation:
15 + 4 = 19
19 x 2 = 38
38 - 19
Answer:
can be expressed in nested form as 
Step-by-step explanation:
Considering the polynomial

Expressing the polynomial by nesting
So,

Step 1) Writing down the coefficient and one factor of x from the first term and add on the coefficient of the next term.

Step 2) Enclose this term in brackets, multiply by x and add on the next coefficient.

Step 3) Repeating the previous step until all terms are within the equation.
So,

Therefore,
can be expressed in nested form as 
<em>Keywords:</em><em> polynomial, nesting form</em>
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You just need to plug 12 in for x in the equation.
f(12)=4(12)+5
f(12)=53
Answer:
the third one
Step-by-step explanation:
Answer:
2 one that's the right one