Answer:
36
Step-by-step explanation:
6+6+(4)(6)
12+24
36
Answer:
36
Step-by-step explanation:
Insert the given values:
Simplify multiplication:
Simplify addition:
:Done
Answer:
C.
$0.54
Step-by-step explanation:
24 and whose fifth term is 1536
or
The common difference, d , in an arithmetic sequence whose fourth
term is 16 and whose seventh term is 31.
Answer:
The common difference d is larger than the common ratio r
Step-by-step explanation:
Geometric sequence
∵ The second term is 24
∴ = 24
∵
- Equate it by its value
∴ ar = 24 ⇒ (1)
∵ The fifth term is 1536
∴ = 1536
∵
- Equate it by its value
∴ = 1536 ⇒ (2)
Divide (2) by (1)
∴
- Divide up and down by ar
∴ r³ = 64
- Take ∛ for both sides
∴ r = 4
Arithmetic sequence
∵ The fourth term is 16
∴ = 16
∵ = a + (4 - 1)d
∴ = a + 3 d
- Equate it by its value
∴ a + 3d = 16 ⇒ (1)
∵ The seventh term is 31
∴ = 31
∵ = a + (7 - 1)d
∴ = a + 6 d
- Equate it by its value
∴ a + 6 d = 31 ⇒ (2)
Subtract equation (1) from equation (2) to eliminate a and find d
∵ (a - a) + (6 d - 3 d) = (31 - 16)
∴ 3 d = 15
- Divide both sides by 3
∴ d = 5
∵ r = 4 and d = 5
∴ d > r
∴ The common difference d is larger than the common ratio r
B. y = sin x
C. y = cot x
D. y = csc x
Answer: y= cos x
y=sec x
Step-by-step explanation:
1/6,1/9,2/27,4/81,...