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GrogVix [38]
3 years ago
6

Jerry started doing sit-ups every day. On the first day, he did 18 sit-ups. Every day after that he did 4 more sit-ups than he h

ad done the previous day. Today Jerry did 26 sit-ups. Enter an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day.
The equation __ d + __= __can help find the number of days Jerry has been doing sit-ups.
Mathematics
1 answer:
77julia77 [94]3 years ago
7 0

Answer:

you have to divide then subtract in order to find the answer

Step-by-step explanation:

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Hello there!
otez555 [7]

Answer:

24  Domain: s>=2  or s<=-2

25. 3x^2 +14x +10

26. x^2 -2x+5  

Step-by-step explanation:

24.  Domain is the input or s values

square roots must be greater than or equal to zero

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Add 4 to each side

s^2 >=4

Take the square root

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g(x) = x+2

f(g(x) = 3(x+2)^2 +2(x+2) -6

Foil the squared term

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Distribute

       = 3x^2 +12x+12 +2x+4-6

Combine like terms

   =3x^2 +14x +10


26 f(g(x))  stick g(x) into f(u) every place you see a u

f(u) = u^2+4

g(x) = x-1

f(g(x) = (x-1)^2 +4

Foil the squared term

         = (x^2 -2x+1) +4

         = x^2 -2x+5  

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