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Paha777 [63]
2 years ago
14

51/8 times 17/4and simplified

Mathematics
2 answers:
gayaneshka [121]2 years ago
3 0

Answer:

27 3/32

Step-by-step explanation:

Bess [88]2 years ago
3 0

Answer:

It's 30  27/28

Step-by-step explanation:

If you multiply 51*17 and 7*4 you get 867/28 which equals 30  27/28

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Is this right?<br> plz tell me
Ludmilka [50]
Yes it is correct... shifted UP is the key word
5 0
2 years ago
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The product of 3, and a number increased by 8​, is -48. 3x+8=-48
arlik [135]
3x + 8 = -48    |subtract 8 from both sides

3x = -56      |divide both sides by 3

x = -18 2/3
7 0
3 years ago
Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. 2x+y+
Igoryamba

Answer:

  (x, y, z) = (1, -1, -4)

Step-by-step explanation:

A suitable graphing or scientific calculator can find the reduced row-echelon form for you. There are on-line calculators that will do that, too.

_____

In general, if you want to do this by hand, you want to use row operations on the augmented matrix to make the diagonal elements 1 and the off-diagonal elements 0 as shown in the attached result.

If a[i,j] represents the element at row i, column j, you do that by dividing row i by a[i, i] (to make a[i, i] = 1), then subtracting the product of row i and a[k,i] from row k. (for all rows k ≠ i) For this 3-row matrix, repeat these steps for i = 1 to 3.

In the general case of an n by n+1 augmented matrix, you will be doing n^2 row operations, each one involving evaluation of n+1 expressions. The work rapidly grows with matrix size, so readily justifies use of a calculator.

As with many "elimination" problems, appropriate choice of sequence can reduce the work. The above algorithm always produces the reduced row-echelon form, but may result in messy arithmetic along the way.

3 0
3 years ago
Item 4
mars1129 [50]
I’m pretty sure its B
5 0
2 years ago
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Find the volume and round to the nearest whole number
MariettaO [177]

Answer:

527 cubic meters

Step-by-step explanation:

The area of the cube would be 7.5^3 and the area of the rectangular prism would be 3.75*3.75*7.5. Then it would be 421.9 + 105.5 and rounded to the whole number the answer would be 527

5 0
2 years ago
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