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dem82 [27]
2 years ago
8

Pls pls, pls help me with my math

Mathematics
1 answer:
Neko [114]2 years ago
4 0

Answer:

Obviously only D is true

Note 2 x - 1 < 10 can be rewritten

2 X < 11       and

x < 5.5

So all of the values in the set would have to be less than 5.5

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What is the Difference between elimination method and indirect method​
soldier1979 [14.2K]

Answer:

Indirect method actually follows the same set of procedure as the direct method except that it begins with net income unlike the elimination method reduced a given system that indicates a system has no unique solution.

6 0
2 years ago
Yoko runs 7 miles in 50 minutes at the same rate how many miles would she run in 75 minutes
Vsevolod [243]

Answer: 10.5 miles

Step-by-step explanation: If she runs 7 miles for 50 minutes, if you half it, she runs 3.5 miles in 25 minutes. This means if you add 7 and 3.5 miles, you would add 50 and 25 minutes,

So 10.5 miles in 75 minutes in your answer

6 0
3 years ago
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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

8 0
3 years ago
What is the answer to 85% of 62
Stella [2.4K]

Answer:

52.7

Step-by-step explanation:

Of means multiply

85% * 62

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52.7

6 0
3 years ago
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What is equivalent to 9
frosja888 [35]
What is equivalent to 9?

9/1 = 9

9/1 is equivalent to 9.
4 0
3 years ago
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