Step-by-step explanation:
A. this is a geometric sequence.
according to y-coordinates =>
3, 6, 12, 24
have a T1 = 3 and ratio = 6/3 = 2
B. the formula = Tn = r. T(n-1)
T5 = 2. T4
= 2. 24 = 48 minutes
C. the formula : Tn = T1 . r^(n-1)
T9 = 3. 2^(9-1)
= 3. 2^8
= 3. 256
= 768 munutes
Answer:
(-6,8)
Step-by-step explanation:
8+x2=2 4+y2=12
x2= -6 y2= 8
Answer:
189
Step-by-step explanation:
let the number be n , then number multiplied by itself is n² and
n² = 567 × 63 = 35721 ( take square root of both sides )
n = = 189
Answer:
x = 30.
Step-by-step explanation:
Use the identity sin A = cos (90 - A).
So sin 30 = cos (90 - 30) = cos 60.
cos 2x = cos 60
so x = 30.