Answer:

Step-by-step explanation:

add the whole numbers

combine the fractions

LCM is 35 because 7 * 5 =35




change the improper fraction into mixed number


Answer:
|x - 4| ≤ 0.3
Step-by-step explanation:
The actual width = 4
Maximum variation, x = 0.3
Hence, the lowest width position based on actual width and possible variation is :
4 - 0.3 ≤ x ≤ 4 + 0.3
3.7 ≤ x ≤ 4.3
It would be an obtuse angle :)
Answer: 3.374
You subtract 5.316 from 1.942 and get 3.374
Hope this helps :)