Answer:
<em>(3) 2-8-4</em>
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Step-by-step explanation:
Sulphur has an atomic number of 16
sulphur can exist in 3 different excited states of +2, +4 and +6
electronic configuration of sulphur is 2,8,6
when excited, <em>it loses 2 electrons to enter the +2 state</em>
in the +2 state, the electronic configuration will be <em>2,8,4</em>
If it's a rhombus, then the diagonals are equal.
Answer:
21.25 m
Step-by-step explanation:
y = Ax² + Bx + C
Set the origin at the middle of the span so that the point (0, 0) is on the curve
0 = A(0)² + B(0) + C means C = 0
The points (200, 85) and (-200, 85) are on the curve
85 = A(200)² + B(200)
85 = A(-200)² + B(-200)
85 - 40000A - B(200) = 85 - 40000A + B(200)
- B(200) = B(200)
-400B = 0
B = 0
85 = A(200)²
A = 85/40000
y = 85x²/40000
y = 85(100)²/40000 = 21.25 m
Number of gallons of gAS USED / WEEK = 150/25 = 6 gallons
Cost = 6 * 3 = 18 dollars (answer).
