How to solve 1/2-4=7 in 2 steps
1 answer:
You might be interested in
Answer:
AC = 12.38 cm
Step-by-step explanation:
When there are 2 pairs given, we can use the sine rule to solve the problem.
By pairs we mean "an angle and side opposite to it"
<em>1 pair is 85.2 degree angle and 13 cm, and another pair is 71.6 degree angle and the side AC (which we want to figure out).</em>
<em />
Sine Rule is given by
where,
A and B are the two respective angles and a and b are the two respective sides (of the pairs). Plugging all the info and using algebra, we have:
Thus, AC = 12.38 cm
Answer:
First term a = 41
Step-by-step explanation:
Arithmetic Progression:
Common differences d = -2
= 10*(2a - 38)
= 10*2a - 10*38
=20a - 380
= 11 (2a -42)
=11*2a - 11*42
= 22a - 462
22a - 462 = 20a - 380
22a = 20a - 380 + 462
22a = 20a + 82
22a - 20a = 82
2a = 82
a = 82/2
a = 41
First term a = 41
Lets frame a eqn :
Number be x
so your answer is 52 !!
Number be x
so your answer is 52 !!