Which of these sequences is a geometric sequence?

1, 2, 4, 7, 11, 16, 22, ...

2, 4, 8, 14, 22, 38, ...

3, 6, 9, 12, 15, 18, 21, ...

3, 9, 27, 81, 343, 729, ...

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To get a grade of c in your course you must average at least 75% on 4 exams. you have taken the first three exams and gotten scores of 68,78, and 81. what must you score on the last exam to get a c or better

125% increase on $50

A coin is tossed 100 times resulting in 46 heads and 54 tails. The same coin is tossed 1000 times resulting in 495 heads and 505 tails. What is the theoretical probability of getting heads with this coin?

Angle x is (2n+12) and angle y is (3n+18). Find the measure of angle x

What is the difference between an observational study and an experiment

a restaurant chain ordered 3940 pounds of rice in 20 pound bags. About how many 20 pound bag of rice did the chain order?

You and your best friend Josh, each want to purchase a video gaming system the costs $200 you have $100 and save five dollars each week Josh has $50 in save $10 each week write the equation for you and Josh.

What is y = x - 8 y=5x

Ricardo possui 35 palitos de sorvete em sua coleção. Enquanto rafael possui 60. Qual a Razão entre as quantidades de palitos de sorvete quee Rafael e Ricardo possuem

This designer will use decorative tape to paint the outline of the letter on a wall. How many inches of tape are needed?