Answer:
A. Algebraic, common difference = −10
Step-by-step explanation:
The difference between the first two terms is -10, as it is between the next two terms. The ratio of the first two terms is -1; of the next pair: -15/-5 = 3. There is a common difference, but not a common ratio.
The sequence is algebraic with a common difference of -10.
Answer:
D)
Step-by-step explanation:
∠1 + ∠2 = 180 {linear pair}
x - 29 + x + 61 = 180 {add the like terms}
2x + 32 = 180 {subtract 32 from both sides}
2x + 32 - 32 = 180 - 32
2x = 148
x = 148/2
x = 74
∠1 = x - 29 = 74 - 29 = 45
∠2 = x + 61 = 74 + 61 = 135
Answer:
The last one, (-6,9)
Step-by-step explanation: For it to be right the nine would have to be negative.
Answer:
1.45
Step-by-step explanation:
rounded
