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Bogdan [553]
3 years ago
14

If f ( x ) = 2 x - 5, then f (4) is _____. 3 5 4 17

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
7 0
The answer is 3

if you substitute x as 4 then it would be 2 x 4 = 8

8-5=3
mash [69]3 years ago
6 0
The answer is 3 because it just 3
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14. Solve: 3x² + 5x – 12 = 0<br>B. 4-3<br>C. 8, - 18​
VARVARA [1.3K]

Answer:

b

Step-by-step explanation:

The equation:

3

x

2

−

5

x

−

12

=

0

is in the form:

a

x

2

+

b

x

+

c

=

0

with  

a

=

3

,  

b

=

−

5

,  

c

=

−

12

The roots are given by the quadratic formula:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

x

=

5

±

√

(

−

5

)

2

−

4

(

3

)

(

−

12

)

2

(

3

)

x

=

5

±

√

25

+

144

6

x

=

5

±

√

169

6

x

=

5

±

13

6

That is:

x

=

5

+

13

6

=

18

6

=

3

 

or  

 

x

=

5

−

13

6

=

−

8

6

=

−

4

3

7 0
3 years ago
What’s the correct answer for this ?
Ann [662]

Answer:

8/3

9/11

try it. and send money :)

5 0
2 years ago
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