Write a recursive formula for the sequence –2, 4, –8, 16, ... please help and thank you
2 answers:
Answer:
see explanation
Step-by-step explanation:
A recursive formula allows us to calculate any term in the sequence from the previous term.
These are the terms of a geometric sequence with r being the common ratio between consecutive terms.
r = 4 ÷ - 2 = - 8 ÷ 4 = 16 ÷ - 8 = - 2
Multiplying a particular term by - 2 gives the next term in the sequence.
Hence recursive formula is
= - 2
with a₁ = - 2
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Answer:
First Graph is Correct
Step-by-step explanation:
We are given the inequality:
This means any number EQUAL TO or LESS than 46
Since, we have "equal to", there should be a "closed" circle on 46 (it means 46 is included).
LESS THAN means all numbers to the "LEFT".
Looking at the 4 number lines, we can eliminate last 2 choices since they don't have closed circles.
As for the first two choices, the first choice is correct because it shows us all the numbers left of 46 and 46 included (signified by the closed circle).
So, the first number line is the solution
The car is driving at 70 miles per hour which is above the speed limit on the highway
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y = mx + b
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Given a car by y = 70x. The car is driving at 70 miles per hour which is above the speed limit on the highway
Find out more on linear equation at: brainly.com/question/14323743