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Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

7 0

We have the following functions:
f (x) = 3x ^ 2-1
g (x) = x + 2
Adding both functions we have:
(f + g) (x) = f (x) + g (x)
(f + g) (x) = (3x ^ 2-1) + (x + 2)
(f + g) (x) = 3x ^ 2 + x + 1
Answer:
The answer for this case is given by:
(f + g) (x) = 3x ^ 2 + x + 1
option 3

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sweet-ann [11.9K]

form 2 equations

length=x

width=y

the equations are:

2(x+y)=82, because 82 would the the perimeter which is 2(l+w)

x=y+9

Now use substitution and you'll get y=16. Then plug in 16 and you'll get x=25. so the length is 25 and the width is 16.

Therefore the dimensions would be 25 by 16. Notice that the length, 25, is 9 greater than the width, 16. Also notice that a perimeter of a rectangle with length 25 and width 16 is 82 ( 2(25+16)=2(41) = 82))

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What is the mean median mode and range for numbers 1-7

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4 years ago

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VladimirAG [237]

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7x4/8=3.5

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