Enh M3 Unit 1 Review

An arithmetic sequence is given below.

2, 9, 16, 23, ...

Which is the explicit formula for the n^th term a_n?

• a_n = -7n+9

• a_n = 7n-5

• a_n = 7n-9

• a_n = -7n+5

Tags

CCSS.HSF.BF.A.2

Evaluate: $\sum_{x=2}^{11}\left(5x-2\right)$  

• 305

• 503

• 53

• 8

Evaluate the geometric series below:
4 + 20 + 100 + 500...,  S₇

• 88419
• 78124
• 91846
• 92234

Tags

CCSS.HSA.SSE.B.4

 $\sum_{n=1}^{\infty}\left(\frac{1}{2}\right)^n$  

• Converges by nth term test

• Diverges by nth term test

• Converges by Comparison to  $\sum_{n=1}^{\infty}\frac{1}{n^2}$  

• Converges by Geometric Series 

Which of the following polynomials is written in standard form?

• y = 7x³ − 5x² + 2x + 7

• y = 8 − 4x² + 3x + 2x³

• y = 10x² − 5x⁵ + 2x + 20

• y = 1 + 2x² − 3x³ + 4x⁴

What is the DEGREE of the polynomial 3x³ + 2x⁴ + 5x ?

• 1

• 2

• 3

• 4

What is the leading coefficient in the polynomial?

7x² + x⁴ - 2 + 22x

• 22

• 1

• 7

• -2

What are the
zeros of the polynomial
y = 3(x + 4)(x + 1)(x - 3)?

• -4, -1, 3
• 3, -3, 4, 1
• 4, 1, -3
• 3, -4, -1, 3

Tags

CCSS.HSF-IF.C.7C

What is the proper way to write the answer for the following problem?

• 2x³-x²-25x+12

• 2x⁴-x³-25x²-12x+0

• 2x³-x²-25x-12

• 2x⁴-x³-25x²-12x-0

Tags

CCSS.HSA.APR.D.6