You have a coupon for an additional 25% off the price of any sale item at a store. The store has put robotics kit on sale for 15
1 answer:
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Answer:
12 in.
Step-by-step explanation:
Formula: a^2 + b^2 = c^2
This case: c^2 - a^2 = b^2
1) 15^2 + 9^2 = b^2
2) 225 - 81 = 144
3) = 12