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Alenkinab [10]
3 years ago
6

If f(x) = 4x-9, evaluate f(3) I need HELP ASAP!!!!!!!!!!!​

Mathematics
1 answer:
seropon [69]3 years ago
8 0

Answer:

substitute 3 as in x:

4(3)-9

= 12-9

= 3

Hope this helped - have a nice day & be safe

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Fill out the Rate column in the table below.<br> a = b=
soldi70 [24.7K]

The rate column will be:

A= 30

B= 20

C= x miles

D= x miles

<h3>What is rate?</h3>

It should be noted that rate simply means the measure, quantity, or frequency that one measure against another quantity or measure.

In this case, Jorden drives to the store at 30 miles per hour and on her way home she averages only 20 miles per hour.

Therefore, the rate column will be:

A= 30

B= 20

C= x miles

D= x miles

Learn more about rate on:

brainly.com/question/25537936

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Fill out the Rate column in the table below. Jorden drives to the store at 30 miles per hour. On her way home she averages only 20 miles per hour. If the total driving time takes half an hour, how far does she live from the store? Fill out the Rate column in the table below. a = b =

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2 years ago
12÷36.2 I need help because I'm getting a wrong answer I think ​
raketka [301]

Answer:

0.331491713 but can convert to 60/181

Step-by-step explanation:

7 0
2 years ago
A jetliner cruises 12 miles for every 60 gallons of fuel it uses . If it used 1,200 gallons of fuel how many miles did it cruise
Romashka [77]
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4 years ago
Which functions have an axis of symmetry of x = –2? Check all that apply.
ELEN [110]

Answer : Answer :f(x) = x^2 + 4x + 3 \ and \ f(x) = -2x^2 - 8x + 1

Given: axis of symmetry of x = –2

To find axis of symmetry we use formula x =\frac{-b}{2a}

We check which equation has axis of symmetry x= -2

(1) f(x) = x^2 + 4x + 3

a=1 , b=4 so axis of symmetry x =\frac{-4}{2*1} = -2

(2) f(x) = x^2 - 4x - 5

a=1 , b=-4 so axis of symmetry x =\frac{-(-4)}{2*1} = 2

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

a=1 , b=6 so axis of symmetry x =\frac{-6}{2*1} = -3

(4) f(x) = -2x^2 - 8x + 1

a=-2 , b=-8 so axis of symmetry x =\frac{-(-8)}{2*(-2)} = -2

(5) f(x) = -2x^2 + 8x - 2

a=-2 , b=8 so axis of symmetry x =\frac{-(8)}{2*(-2)} = 2

So f(x) = x^2 + 4x + 3 and f(x) = -2x^2 - 8x + 1 has axis of symmetry x=-2

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4 years ago
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