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tamaranim1 [39]
3 years ago
12

The mean of the data set is 10. What is the 5th number in the data set? 12,9,8,13,?

Mathematics
1 answer:
ANTONII [103]3 years ago
8 0
What number divided by five is ten? 50. 
If you add together 12, 9,8, and 13 you will get 42. The fifth number is 8 because 42+8= 50

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A new computer can complete a complex biochemistry calculation in 7 hours less than an older-model computer. Working together, t
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6 0
3 years ago
What are the coordinates of the roots of the equation x sqaured + 4x + 3= 0
scZoUnD [109]

Answer:

a

x

2

+

b

x

+

c

=

0

the formula for the roots is

x

=

−

b

±

√

b

2

−

4

a

c

2

a

(

1

)

Identify the values for

a

,

b

,

&

c

x

2

+

4

x

+

3

=

0

cmp

a

x

2

+

b

x

+

c

=

0

a

=

1

b

=

4

c

=

3

(

2

)

Substitute these numbers into eh formula

x

=

−

4

±

√

4

2

−

(

4

×

1

×

3

)

2

×

1

(

3

)

Carefully proceed and do the calculations

x

=

−

4

±

√

16

−

12

2

x

=

−

4

±

√

4

2

x

=

−

4

±

2

2

now calculate the two separate solutions

x

1

=

−

4

+

2

2

=

−

2

2

=

−

1

x

2

=

−

4

−

2

2

=

−

6

2

=

−

3

Answer link

Step-by-step explanation:

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