Question

Find the value of x. Round your answer to the nearest tenth.
x
10
Blank 1:

Answer 1

Answer:

12.2

Step-by-step explanation:

By Pythagoras theorem:

${x}^{2} = {10}^{2} + {7}^{2} \\ {x}^{2} = 100 + 49 \\ {x}^{2} = 149 \\ x = \sqrt{149} \\ x = 12.2065556 \\ x \approx \: 12.2$