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gaboalejandro833
07.05.2021 •
Mathematics
NEED HELP ASAP
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Ответ:
Ответ:
y = 24.5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS Equality PropertiesAlgebra I
Directly Varies: y = kxInversely Varies: yx = kStep-by-step explanation:
Step 1: Define
Varies directly: y = kx²
y = 2
x = 2
Step 2: Solve for k
Isolate k: k = y/x²Substitute: k = 2/2²Evaluate: k = 2/4Simplify: k = 1/2Step 3: Find y
k = 1/2
x = 7
y = ?
Define: y = kx²Substitute: y = 1/2 · (7)²Evaluate: y = 1/2(49)Multiply: y = 49/2Divide: y = 24.5