If the endpoints of DE where D(-3, y) and E(x, 6) with the midpoint M(4, 2), the length of DE is 16.12 units
The formula for calculating the midpoint is expressed as;

For the x-coordinate points:
X = -3+x/2
4 * 2 = -3 + x
8 = -3 + x
x = 8 + 3
x = 11
Get the value of y;
2 = y+6/2
y+6 = 2 * 2
y + 6 = 4
y = 4 - 6
y = -2
Hence the coordinates of D and E are D(-3, -2) and E(11, 6)

Hence the length of DE is 16.12 units
Learn more here; brainly.com/question/22624745
K=am+3mx
K=m(a+3x)
m=K/(a+3x)
Answer: m=K/(a+3x)
There are several algebraic properties of equality.
<em>The property that shows that both distance are the equal is the symmetric property of equality</em>
Represent the distance between the elephants and the giraffes with x
Represent the distance between the tigers and the zebras with y
The symmetric property of equality states that:
<em>For 2 expressions or numbers; x and y</em>
<em>If x = y, then y = x</em>
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In this context, the above property means that:
<em>If the distance between the elephants and the giraffes is the same as the distance between the tigers and the zebras, then both distance are equal</em>
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Hence, the property to use is the symmetric property of equality
Read more about properties of equality at:
brainly.com/question/13130806
Answer:
1) 4.68 kiloliters
2) 27800 more liters of fuel
Step-by-step explanation: