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Arisa [49]
2 years ago
12

bill is purchasing Hammers and wrenches for his workshop and he would like to spend under $110 each Hammer cost $9 and each wren

ch cost for​
Mathematics
1 answer:
kow [346]2 years ago
4 0

Answer:

Incomplete Question

Step-by-step explanation:

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Area = (5*12)/2 = 30 m²
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The area of a circle is given by πr2, where r is the radius of the circle. If we use rounding to the nearest whole number, what
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75cm^2

Step-by-step explanation:

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Please please help me out
levacccp [35]

Answer:

D. -18x-6

Step-by-step explanation:

The Distributive property is all you do is time -3 to both the 6 and the 2 and you will get your answer. -18x-6.

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7(2e-1)-3=6+6e solve for e. e=?
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7(2e-1)-3=6+6e\\\\14e-7-3=6+6e\\\\14e-10=6+6e\ \ \ \ |+10\\\\14e=16+6e\ \ \ \ |-6e\\\\8e=16\ \ \ \ |:8\\\\\boxed{e=2}

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3 years ago
Solve the system by using elementary row operations on the equations. Follow the systematic elimination procedure
Umnica [9.8K]

Answer:

The solution of the Given matrix

  ( x₁ ,    x ₂ ) = ( - 5 , 4 )

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given equations are  x₁+4 x₂ = 11 ...(i)

                                 2 x₁ + 7 x₂= 18 ...(ii)

The matrix form

                                A X = B

            \left[\begin{array}{ccc}1&4\\2&7\\\end{array}\right]  \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}11\\8\\\end{array}\right]

<u>Step(ii):-</u>

      \left[\begin{array}{ccc}1&4\\2&7\\\end{array}\right]  \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}11\\8\\\end{array}\right]

The Augmented Matrix form is

[AB] = \left[\begin{array}{ccc}1&4&11\\2&7&18\\\end{array}\right]

Apply Row operations,  R₂ → R₂-2 R₁

[AB] = \left[\begin{array}{ccc}1&4&11\\0&-1&-4\\\end{array}\right]  

The matrix form

                   \left[\begin{array}{ccc}1&4\\0&-1\\\end{array}\right]  \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}11\\-4\\\end{array}\right]

The equations are

                     x₁ + 4 x₂ = 11 ...(a)

                         - x ₂ = - 4

                            x ₂ = 4

Substitute   x ₂ = 4 in equation (a)

                      x₁ + 4 x₂ = 11

                      x₁ = 11 - 16

                        x₁ = -5

<u>Final answer</u>:-

The solution of the Given matrix

  ( x₁ ,    x ₂ ) = ( - 5 , 4 )

7 0
3 years ago
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