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Marianna [84]
3 years ago
13

Which property is not used to simplify the following expression?

Mathematics
1 answer:
astraxan [27]3 years ago
4 0

Answer:

The last one of commutative property of addition since there is no swapping of numbers related with addition.  

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Line e has a slope of 7/4 line f is parallel to line e what is the slope for line f
Ugo [173]

Answer:

line f has a slope of -7/4

Step-by-step explanation:

parallel line always have opposite slopes

6 0
4 years ago
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Find the slope of the line <br>plzzz will give brainliest ​
vazorg [7]

Answer:

-2/3

Step-by-step explanation:

Find two points and count the x and y axises between them.

(hope this helps!)

8 0
3 years ago
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creativ13 [48]
If you need me to clarify anything i got you

5 0
3 years ago
what is the equation of the quadratic function that passes through the points (0,-1),(1,0),and (2,-3)
Alexus [3.1K]

Answer:

-2x^2 + 3x -1

Step-by-step explanation:

y = ax^2 + bx + c

(0,-1):  

-1 = a(0)^2 + b(0) + c

-1 = 0 + 0 + c

-1 = c

(1,0):

0 = a(1)^2 + b(1) + c

0 = a + b + c

(2,-3):

-3 = a(2)^2 + b(2) + c

-3 = 4a + 2b + c

Replace c with -1

0 = a + b -1

1 = a + b

-3 = 4a + 2b -1

-2 = 4a + 2b

-1 = 2a + b

Solve:

2a + b = -1

-1a - b = -1

a = -2

2a + b = -1

-2a -2b = -2

-b = -3 divide both by -1:  b = 3

a = -2; b = 3; c = -1

y = ax^2 + bx + c or y = -2x^2 +3x -1

6 0
3 years ago
PLEASE help!10 points​
andrey2020 [161]

Answer:

[ 0 ]

Step-by-step explanation:

The order of the matrix [ 3 1 1 ] is 1 by 3 and the order of the other matrix is 3 by 1 so this means that the order of the answer matrix is 1 by 1. So we multiply matrices row by columns.

[ 3 1 1 ] × | 2|

| -6|

| 0|

[ 3 × 2 + 1 × -6 + 1 × 0 ]

[ 6 - 6 + 0 ]

[ 0 ]

4 0
3 years ago
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