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ohaa [14]
4 years ago
9

I need help on this problem...

Mathematics
1 answer:
Julli [10]4 years ago
4 0

Option C:

x = 0

Solution:

Given equation : \frac{1}{2}(x-14)+11=\frac{1}{2} x-(x-4)

To find the value of x from the given equation.

$\frac{1}{2}(x-14)+11=\frac{1}{2} x-(x-4)

$\Rightarrow\frac{1}{2}x-7+11=\frac{1}{2} x-x+4

$\Rightarrow\frac{1}{2} x+4=-\frac{1}{2} x+4

Subtract 4 from both sides of the equation.

$\Rightarrow\frac{1}{2} x+4-4=-\frac{1}{2} x+4-4

$\Rightarrow\frac{1}{2} x=-\frac{1}{2} x

Arrange like terms in one side of the equation.

Negative term changed to positive term when it goes to left side of the equation.

$\Rightarrow\frac{1}{2} x+\frac{1}{2} x=0

$\Rightarrow\frac{1+1}{2} x=0

$\Rightarrow\frac{2}{2} x=0

$\Rightarrow x=0

Option C is the correct answer.

The value of x is 0.

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What is he slope and y intercept for the line Y=-4x+2​
Sav [38]

y=mx+b

slope is also m

b is the y-intercept

Y=-4x+2​

answer:

slope=-4, y-intercept=2

7 0
3 years ago
Jill wrote the number 40. if her rule is add 7 what is the fourth number in jills pattern
Sedbober [7]
1) 40+7=47
2) 47+7= 54
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6 0
4 years ago
"If 5 is decreased from double Joe's weight, the result is 230. What is Joe's weight?"<br> 30
Gala2k [10]

Answer:

117.5 or 235/2

Step-by-step explanation:

We can set up an equation for this problem:

Lets Joe's weight be x

then:

2x -5 = 230

therefore:

2x = 235

x = 117.5 or 235/2

3 0
3 years ago
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5 0
3 years ago
If the value of third order determinant is 11. Then what is the value of the determinant formed by its cofactors.
nordsb [41]

Answer:

146.41

Step-by-step explanation:

third order determinant = determinant of 3×3 matrix A

given ∣A∣=11

det (cofactor matrix of A) =set (transpare of cofactor amtrix of A) (transpare does not change the det)

=det(adjacent of A)

{det (cofactor matrix of A)}  ^2  = {det (adjacent of A)} ^2

 

(Using for an n×n det (cofactor matrix of A)=det (A)^n−1 )

we get

det (cofactor matrix of A)^2  = {det(A)  ^3−1 }^2

 

=(11)^2×2  = 11^4

 =146.41

5 0
3 years ago
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