7 + 1.50h = 19
1.50h = 19 - 7
1.50h = 12
h = 12 / 1.50
h = 8 hrs <===
<span> |x| > 2.5
x < -2.5 , x > 2.5 </span>
Answer:
the common difference of the sequence is 
Step-by-step explanation:
A sequence of numbers is said to be in arithmetic progression of each term of the sequence has same common difference.
Now, here first term a1 = 1/4
Second term a2 = 5/16
Third term a3 = 3/8
Now, Common difference (d) = a2 - a1 = a3 - a2
Now, a2 - a1 = 
Now, a3 - a2 = 
Hence, the common difference of the sequence is 