Answer: subtract 10
Step-by-step explanation: 25 - 10 =15
The variation equation is xy = a^3
<h3>How to determine the equation?</h3>
An inverse variation is represented as:
xy = k
Where k is the constant of variation
When y = a and x =a^2, we have:
k = a * a^2
Evaluate
k = a^3
Substitute k = a^3 in xy = k
xy = a^3
Hence, the equation is xy = a^3
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BAC and CAD are adjacent angles, because they share a common vertex (A) and a common side AC, (an no other common points but the points on side AC).
The 2 adjacent angles form a new larger angle (BAD), whose measure is the sum of the measures of the adjacent angles.
This is called the "Angle Addition Postulate"
Answer: A
ΔIJK ≈ ΔPQR => ∡I = ∡P =>
=> 3X + 4 = 72 - X
3X + X = 72 - 4
4X = 68
X = 68 : 4
X = 17