The angle that has a little square in the corner, is 90 degrees. so you can add 90 and 72 which is 162 and take 180-162 because the line that is on top of them is a straight line. so z= 18 degrees. take 180-72 because the line left to 72 is also straight so x=108.
we know z already equals 18 so add 90+18= 108. subtract 180-108 =72
z=18
x=108
y=72
I think the answer is B because the radius is 10 and 10 squared is 100 and 100 times 3.14 is 31.4
Answer:
12-g=44
Step-by-step explanation:
The answer is c, but I’m not rlly sure
The sequence is defined as
an = 3an - 1 + 7
This means that
a2 = 3(a(2 - 1) + 7
a2 = 3a1 + 7
From the information given ,
a1 = - 4
Thus,
a2 = 3 * - 4 + 7 = - 12 + 7
a2 = - 5
a3 = 3(a(3 - 1) + 7
a3 = 3a2 + 7
a3 = 3 * - 5 + 7 = - 15 + 7
a3 = - 8
a4 = 3(a(4 - 1) + 7
a4 = 3a3 + 7
a4 = 3 * - 8 + 7 = - 24 + 7
a4 = - 17
Thus, the first four terms of the sequence are
- 4, - 5, -