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xz_007 [3.2K]
3 years ago
11

Use the discriminant to determine the number of solutions. x2 + x = 12

Mathematics
1 answer:
Sati [7]3 years ago
3 0

Answer:

x=4

Step-by-step explanation: So you do 2x plus 1x which is 3x. Then you divide both sides by 3 which leaves you with x=4. Thats your answer. <3

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allsm [11]

Answer:   A  C and D

                               

Step-by-step explanation:

3 0
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To find the range you take the big number and subtract the small number.True False
statuscvo [17]

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True

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7 0
3 years ago
QUESTION 4 If 1 foot = 0.37 metres and 1 mile = 5,180 feet, find the number of kilometres in 15 miles. show how to work out the
Andreas93 [3]

Answer:

28.749 km

Step-by-step explanation:

in reality

1 foot = 0.3048 meters not 0.37

1 mile = 5,280 feet not 5,180

15 miles  = 24.14016 kilometers

---------------------------

Using the numbers stated in the problem

0.37m/ft * 5180ft/mile * 15mile * 1km/1000m = 28.749 km

4 0
2 years ago
Use synthetic division find the product of ( 2x+3) and (x2-5x+6)​
alexgriva [62]

Answer:

8

x

3

+

2

x

2

−

3

x

+

18

Explanation:

We have:

(

2

x

+

3

)

(

4

x

2

−

5

x

+

6

)

Now let's distribute this piece by piece:

(

2

x

)

(

4

x

2

)

=

8

x

3

(

2

x

)

(

−

5

x

)

=

−

10

x

2

(

2

x

)

(

6

)

=

12

x

(

3

)

(

4

x

2

)

=

12

x

2

(

3

)

(

−

5

x

)

=

−

15

x

(

3

)

(

6

)

=

18

And now we add them all up (I'm going to group terms in the adding):

8

x

3

−

10

x

2

+

12

x

2

+

12

x

−

15

x

+

18

And now simplify:

8

x

3

+

2

x

2

−

3

x

+

18

Step-by-step explanation:

6 0
3 years ago
A set of stacked plates for serving weighs 12kg . If each plate weighs 1/2 kg how many plates are in the stack?​
Nutka1998 [239]

Answer:

24

Step-by-step explanation:

12 divided by 1/2 = 24

Hope this helped! :)

7 0
2 years ago
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