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snow_lady [41]
3 years ago
8

How do I solve the equation.×-8=4 can you help me with step by steps on this please

Mathematics
2 answers:
labwork [276]3 years ago
8 0
You have to isolate the variable so you add eight to both sides x - 8 = 4 +8 +8 now add the other side. remember what is done to one side of the equal sign must be done to the other side. x = 4 + 8 x = 12
Sauron [17]3 years ago
4 0
   This is really easy.
x-4=8 
   what it really is asking you is the value of x
   Isolate x
   take 4 to the other side. not -4 but positive 4
   x=12

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Create a 3rd degree polynomial function with one zero at three. Sketch a graph
DedPeter [7]

Answer:

f(x) =  {x}^{3}  - 9 {x}^{2}  + 27x - 27

Step-by-step explanation:

We want to create a third degree polynomial function with one zero at three.

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Since x=3 is a solution, x-3 is the only factor that repeats thrice.

f(x) =  {(x - 3)}^{3}

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This simplifies to:

f(x) =  {x}^{3}  - 9 {x}^{2}  + 27x - 27

See attachment for graph.

4 0
3 years ago
A rectangle has a length of 11 meters less than 10 times its width. If the area of the rectangle is 9888 square meters, find the
kobusy [5.1K]

Step-by-step explanation:

The Length ,

L

=

284

f

t

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Explanation:

Given:

Rectangle

Area,

A

=

8804

f

t

2

let W bet he width of the rectangle

L be the length of the rectangle

L

=

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W

−

26

E

q

u

a

t

i

o

n

1

substitute to

e

q

u

a

t

i

o

n

2

A

=

(

L

)

(

W

)

e

q

u

a

t

i

o

n

2

A

=

(

10

W

−

26

)

(

W

)

8804

=

(

10

W

−

26

)

(

W

)

factor

8804

=

2

(

5

W

−

13

)

(

W

)

divide both sides by 2

4402

=

(

5

W

−

13

)

(

W

)

4402

=

5

W

2

−

13

W

transposing 4402 to the right side of the equation

0

=

5

W

2

−

13

W

−

4402

by quadratic formula

W

=

−

(

−

13

)

+

√

(

−

13

)

2

−

4

(

5

)

(

−

4402

)

2

(

5

)

W

=

[

13

+

√

169

+

88040

]

10

W

=

13

+

(

√

88209

)

10

W

=

13

+

297

10

W

=

310

10

W

=

31

ft

Thus ,

L

=

10

W

−

26

=

10

(

31

)

−

26

L

=

284

f

t

.

answer

W

=

−

(

−

13

)

−

√

−

(

−

13

2

)

−

4

(

5

)

(

−

4402

)

2

(

5

)

this is discarded since this will yield a negative

8 0
3 years ago
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6 0
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