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serious [3.7K]
3 years ago
9

Write 900,000+80,000+500+7 in standard form HELP I NEED IT FOR TOMORROW HELP

Mathematics
2 answers:
Vsevolod [243]3 years ago
3 0
The answer is 980, 507
andreyandreev [35.5K]3 years ago
3 0
Standard Form= 980,507
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Use matrix inversion to solve the collection of systems of linear equations. HINT [See Example 4.] (a) −x − 4y + 2z = −10 x + 2y
omeli [17]

Answer:

Step-by-step explanation:

given is a system of linear equations in 3 variables as

-x - 4y + 2z = −10\\ x + 2y - z = 11 \\x + y - z = 14

This can be represented in matrix form as

AX=B Or

\left[\begin{array}{ccc}-1&-4&2\\1&2&-1\\1&1&-1\end{array}\right] *\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}-10\\11\\14\end{array}\right]

So solution set

X would be A^{-1} B

|A|=-1(-1)+4(0)+2(-1)=--1

Cofactors of A are

-1    0    -1

-2   -1     -3

0     1      2

So inverse of A is

1    2   0

0   1     -1  

1     3      -2

Solution set would be

x=12

y=-3

z=-5

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BRAINLEST PLUS 10 PTS <br> Solve for x pls
Anna11 [10]

Answer:

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Step-by-step explanation:

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Solve the system of equations by the substitution method. x+4y=6 y=3−x
Fiesta28 [93]

Answer:

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Step-by-step explanation:

x + 4y = 6 and y = 3 - x have to be rearranged: x + 4y = 6 and x + y = 3

You subtract the equations to eliminate one of the variables (x) so that the other can be found

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Explain why 173 degrees cannot be an interior angle from any regular polygon.
Rus_ich [418]

Answer:

A regular polygon with each interior angle of 170 deg will have each exterior angle as 180–170 = 10 deg. Hence the number of sides in the regular polygon = 360/10 = 36 sides.

Hope this helps

Step-by-step explanation:

8 0
2 years ago
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