Answer:
12.4+3√7 is irrational
Step-by-step explanation:
12.4 is a rational number
3√7 is an irrational number
<u>The sum of a rational number and an irrational number is irrational.</u>
So, 12.4+3√7 is irrational
Answer:
3339/2=1669.5
Step-by-step explanation:
Answer:
225
Step-by-step explanation:
3240k = 2×2×2×3×3×3×3×5×k
Every factor should be in groups of 3
(3×5)² = k
k = 225
Answer:
-4
Step-by-step explanation:
Answer:
5n-t/7
Step-by-step explanation:
The product of 5 and n puts them in the same category and product means times and your going to minus t divided by 7
