5
Answer: DSet 17: Linear Equations
Explanation
A 10 ft ladder leans against a wall. The base is 6 ft away. How high does it reach? (Pythagorean Theorem)
A.
12
B.
4
C.
16
D.✓ Correct
8
Detailed Explanation
Choice D is correct. Choice B is the correct answer. 1. Equation: 2. Simplify: 3. Subtract 36: 4. Square Root: Choice C is incorrect because it results from an error in the solution process. Choice D is incorrect because it results from an error in the solution process. Choice C is incorrect because it results from an error in the solution process.
Key Steps:
•
The correct answer is 8
Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
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