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schepotkina [342]
3 years ago
15

Plz plz plz help i don't know what to do it's due at midnight

Mathematics
1 answer:
-BARSIC- [3]3 years ago
7 0
AD=13 because it’s congruent to DC,
AC is equal to 24 because the half is 12 so you’ll be adding the half-and-half which is 24
AB is equal to 20 because it’s congruent to CB

SORRY CAN’T HELP WITH THE REST
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MrRa [10]

Answer:

x = -1, y = 2 and z = 1

Step-by-step explanation:

The given system of equations are :

2x - y + 3z= -1  ....(1)

x + 2y - 4z = -1  ......(2)

y – 2z = 0  .....(3)

Equation (3) can be written as :

y = 2z

Use y = 2z in equation (2)

x + 2(2z) - 4z = -1

x + 4z - 4z = -1

x = -1

Put the value of x in equation (1) :

-2 -y +3z = -1

-y+3z = 1 ....(4)

Adding equation (3) and (4)

y-2z+(-y+3z)=1

z = 1

Now put z = 1 in equation (4)

-y+3=1

-y = -2

y = 2

Hence, the values of x,y and z are -1, 2 and 1 respectively.

6 0
3 years ago
11x + 10y - 8x - 12y<br><br> (a) x + -2y<br> (b) 3x + 2y<br> (c) -x + 2y<br> (d) 3x + -2y
svetoff [14.1K]

Answer:

d) 3x+-2y

Step-by-step explanation:

combine like terms of x and y

11x-8x=3x

10x-12x=-2y

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4 years ago
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Taya2010 [7]

Answer: Elijah would be 42 inches tall

Step-by-step explanation:

We all know that Samuel is 48 inches while Elijah is 6 inches shorter.

You subtract 6 from 48 to get 42.

Hopefully, this helped. :D

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Step-by-step explanation:

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