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Margarita [4]
3 years ago
12

evaluate the following expression using the values given: find 3x − y − 3z if x = −2, y = 1, and z = −2. (1 point) −13 −1 1 13

Mathematics
1 answer:
olga_2 [115]3 years ago
5 0
You plug X=-2, y=1, and z=-2 in the problem
3(-2)-(1)-3(-2)= -1 
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Step-by-step explanation:

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2 years ago
In the matrix equation below, what are the values of x and y?
Karo-lina-s [1.5K]

Answer:

The value of x = 5 and y = 2

The correct answer is last option

Step-by-step explanation:

From the figure we can see that, subtraction of two matrices.

The resultant matrix shows the corresponding terms difference.

<u>To find the value of x</u>

1/2(x + 3) - (3*(-1)) = 7

x/2 + 3/2 +3 = 7

x/2 +3/2 = 7 - 3 = 4

x + 3 = 8

x = 8 - 3 = 5

x = 5

<u>To find the value of y</u>

8/2  -3 (y +1) = -5

4 - 3(y +1)/ = -5

3(y +1)  = 4 + 5  = 9

y + 1 = 9 / 3 = 3

y = 3 - 1 = 2

Therefore the value of x = 5 and y = 2

The correct answer is last option

4 0
3 years ago
Can someone help me with the missing ones??
den301095 [7]

Answer:

Step-by-step explanation:

3). Definition of midpoint

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7). Division Property of Equality.

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9). PQ = 4(<em>2</em>)  - 1 = 7    Substitution x by equal value

10). Segment addition postulate

11). Substitution

6 0
2 years ago
The point (0, –4) is located on _____ .
maria [59]

Answer:

On The Y axis

Step-by-step explanation:

it labeled as (x,y) so i goes down -4 and so it is on the y axis

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2 years ago
If 2.063 kilometers long and 2.07 kilometer long than how long is span of both
Troyanec [42]
4.133 kilometers

2.063 + 2.07 = 4.133
6 0
3 years ago
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