4 years ago

F(x)=4x+1 and g(x)=x2-5, find (f+g)(x)

Mathematics

1 answer:

yulyashka [42]4 years ago

5 0

Answer:

$(f+g)(x) = x^{2} + 4x - 4$

Step-by-step explanation:

f(x) + g(x) = $(4x +1) + (x^{2} - 5)$

$x^{2} + 4x - 4$

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If f(x) = 3 ^ x - 7 and g(x) = x ^ 2 + 11 , the value of f(2) - g(7) is:

Maurinko [17]

Answer:

The value of $f(2) - g(7)=-58$

Step-by-step explanation:

We have

$f(x) = 3 ^ x - 7\\\\f(2) = 3 ^ 2 - 7\\\\=9-7\\\\=2\\\\g(x) = x ^ 2 + 11\\\\g(7) = 7 ^ 2 + 11\\\\=49+11\\\\=60\\\\f(2) - g(7)=2-60\\\\=-58$

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3 years ago

a painter chargers $12 an hour while his son charges $6 an hour. if the father and son worked the same amount of time together o

vodomira [7]

Answer: 6 hours

Step-by-step explanation:

Let x= the number of hours they've worked

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18x=108

Divide 18 on both sides

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Hope this helps!! :)

Please let me know if you have any question

3 0

3 years ago

Read 2 more answers

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Karolina [17]

Answer:

x=21

Step-by-step explanation:

Following the vertical angles, we can assume that the equation that has x and 87 are equal to each other. From then, you set them equal to each other and solve for x.

87=4x+3

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2 years ago

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The Collins family electric bill each month from April through September

mina [271]

Answer:

charge for electricity used over 700 kilowatt-hours per month.

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