Answer:
9 = x (assuming 15 is the hypotenuse)
Step-by-step explanation:
15^2 = 12^2 + x^2
225 = 144 + x^2
subtract 144 from both sides
81 = x^2
square root both sides
9 = x
Answer: b , d , e ( hope this helps ) :D
Answer:
Common Difference(d) is

Step-by-step explanation:
Given sequence is :

If a sequence has a constant common difference throughout the sequence, then the sequence is called Arithmetic Progression.
Considering a sequence:


where 'd' is the common difference of the A.P.
Similarly, finding the common difference of the given sequence.



Common Difference(d) is

<h3><u>20 ≥ x ≥ 10</u></h3>
would the way to display the compound inequality.