Answer:
missing side = 50
Step-by-step explanation:
using Pythagoras theorem,
30² + 40² = (missing side)²
900 + 1600 = (missing side)²
(missing side)² = 2500
missing side = √2500
missing side = 50
Answer is letter C. See photo for solution
1. 3n + 4
3(6) + 4
18 + 4
22
2. N/2 - 1
6/2 - 1
3 - 1
2
3. 15 - n
15 - 6
9
4. n² - 5
6² - 5
36 - 5
31
5. 9(N-2)
9(6-2)
9(4)
36
6. 4n / 3+1
4(6) / 4
24 / 4
6
7. 2(18-n)
2(18 - 6)
2(12)
24
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