Answer:
gabby is correct
Step-by-step explanation:
Answer:
7.48m (3s.f.)
Step-by-step explanation:
Let the missing side be x m.
Applying Pythagoras' Theorem,
x² +5²= 9²
x² +25= 81
x²= 81 -25 <em>(</em><em>-25</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
x²= 56
![x = \sqrt{56}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Csqrt%7B56%7D%20)
![x = 2 \sqrt{14}](https://tex.z-dn.net/?f=x%20%3D%202%20%5Csqrt%7B14%7D%20)
x= 7.48 (3 s.f.)
∴ The missing side is 7.48 m (3s.f.)
Do you still need the answer, because im working on the same question..
Answer:
153
Step-by-step explanation:
ans.
5x=85
x =85÷5
=17
9x=17x9
=153
19. 5x - 5 = 3x -9
2x = -4
x = -2
19. Answer is A