Answer:
y=x
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
When we know two sides and the included angle, there is a formula we can use.
We know angle C = 35º, and sides a = 20cm and b = 19.5cm.
using the formula
Area =(½)ab sin C(angle)
Put in the values we know:
(20×19.5÷2)×sin(35)=
111.8474050885 cm^2
rounded = 111.85 cm^2
answer is c
Answer:
First term (a) =8
Common difference (d)= t2-t1
=12-8
=4
Now, sum of first 31th term (tn31) =n/2{2a+(n-1)d}
= 31/2{2×8+(31-1)4}
=31/2{16+(30×4)
=31/2(16+120)
=31/2×126
=31×63
Step-by-step explanation:
Similarly use 19 as (n) for the 19th term
Answer:
d = 2*5 = 10
Step-by-step explanation:
