Answer:
11.22
Step-by-step explanation:
36.92+51.86+c=100
c represents the change
c=100-36.92-51.86
c=11.22
Answer:
i personally think the 65 in. one
Step-by-step explanation:
Answer:
√29
Step-by-step explanation:
We are here given that ,
Now square the first equation ,
⇒ a - b = 3
⇒ ( a - b)² = 3²
⇒ a² + b² - 2ab = 9
⇒ a² + b² - 2(5) = 9
⇒ a² + b² -10 = 9
⇒ a² + b² = 9 + 10
⇒ a² + b² = 19
⇒ a² + b² + 2ab = 19 + 2(5)
⇒ (a + b)² = 19 + 10
⇒ ( a + b)² = 29
⇒ a + b = √29 .
What is that sign in the middle ?