Math Homework

Please read the PowerPoint attached and watch the video on the link below to answer the following questions:

https://media.pearsoncmg.com/cmg/pmmg_mml_shared/video_player/dev_redirect/mathxl_video_player.html?from_flash=true&video=/aw/aw_miller_mathideas_12/video/mmi12_sl_01_02

QUESTION 1

1. Use the indicated formula to find the sum. Use S =   to find the sum of 1 +  2 +  3 +  ... + 425.

2.		90,100
		90,525
		89,676
		90,312

QUESTION 2

1. Use the method of successive differences to determine the next term in the sequence. 7, 12, 30, 70, 141, 252, ...

2.		421
		425
		403
		412

QUESTION 3

1. Use the method of successive differences to determine the next term in the sequence. 14, 20, 31, 47, 68, ...

2.		94
		98
		99
		89

QUESTION 4

1. Determine what the next equation would be, and verify that it is indeed a true statement. (1 ×  9) - 8 =  1 (21 ×  9) - 8 =  81 (321 ×  9) - 8 =  2881

2.		(4,321 × 9) - 8 = 38,881
		(432 × 9) - 8 = 38,881
		(4,321 × 9) - 8 = 28,881
		(4,321 × 9) - 8 = 3880

QUESTION 5

1. Use the appropriate formula to find the indicated figurate number. Use formulas in your book. the 13th hexagonal number

2.		H13 = 97.5
		H13 = 325
		H13 = 351
		H13 = 286

QUESTION 6

1. Use the indicated formula to find the sum. Use S =  n2 to find the sum of 1 +  3 +  5 +  ... + 701. (To find 'n' add 1 to the last number and divide by 2.)

2.		123,201
		123,202
		123,200
		122,500

QUESTION 7

1. Determine if the sequence is an arithmetic sequence, a geometric sequence, or neither. If it is either arithmetic or geometric, give the next term in the sequence. 224 ,  112 ,  56 ,  28 ,  14 , . . .

2.		neither
		geometric; 7
		arithmetic; 7

QUESTION 8

1. Determine if the sequence is an arithmetic sequence, a geometric sequence, or neither. If it is either arithmetic or geometric, give the next term in the sequence. 9 ,  29 ,  49 ,  69 ,  89 , . . .

2.		arithmetic; 109
		neither
		geometric; 109

QUESTION 9

1. Use the appropriate formula to find the indicated figurate number. the 13th triangular number

2.		T13 = 84.5
		T13 = 78
		T13 = 91
		T13 = 14

QUESTION 10

1. Determine what the next equation would be, and verify that it is indeed a true statement. (3 ×  1) ×  (2 ×  1) =  6 (3 ×  10) ×   (2 ×  2) =  120 (3 ×  100) ×  (2 ×  3) =  1800

2.		(3 × 1000) × (2 × 4) = 24,000
		(3 × 1000) × (2 × 4) = 27,000
		(3 × 1000) × (2 × 4) = 2400
		(3 × 1000) × (2 × 4) = 21,000