Digital SAT Math Practice Question #2537
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Geometry & Trig Rule: Always sketch the triangle or circle and check for standard Pythagorean triples (3-4-5, 5-12-13, 7-24-25, 8-15-17).
Substitute $y = 3$: $a^2 + 3^2 = 25 \implies a^2 + 9 = 25 \implies a^2 = 16 \implies a = 4$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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