Applying Vectors in the Plane — Unit test Answers

What is the sum of the first 34 numbers in the series below?147 + 130 + 113 + 96 + . . .

Dreya is saving money to purchase a $900 computer, and she saves $10 the first week. Each week after that, she saves $3 more than the previous week, except in the last week, when she reaches $900. To have a final sum of exactly $900, how much money does Dreya need to save in her final week of saving?

Which summation formula is equivalent to the one below?

How can be rewritten?

Mya has a picture that measures 10 inches by 10 inches. She uses a photocopier to reduce the length and width of the picture to 75% their original size. What are the dimensions of the picture after five reductions (reducing to 75% each time)? Round any decimals to the nearest tenth.

The amount of interest earned on an account can be represented using the recursive formula . If , and n represents the number of months the money is invested, what is the balance at the end of each month for the first three months?