Algebra 2 Honors - Final Exam Review #1

In a factory, the weight of the concrete poured into a mold by a machine follows a normal distribution with a mean of 1150 pounds and a standard deviation of 22 pounds. Approximately 95% of molds filled by this machine will hold weights in what interval? 

• 1084 to 1216 pounds 
• 1106 to 1150 pounds 
• 1106 to 1194 pounds 
• 1128 to 1172 pounds

At a local high school, GPA's are normally distributed with a mean of 2.9 and standard deviation of 0.6. What percentage of students at the high school have a GPA between 2.3 and 3.5?

• 68%
• 99.7%
• 95%
• 84%

The mean temperature in Glens Falls for the month of February is 23 degrees with a standard deviation of 4.2 degrees.  What is the z-score for a temperature of 17 degrees?  

• 1 
• 1.43
• -1.43
• 11.5

What is the mean and standard deviation of this data?

• x̄ = 80, σ = 5.19

• x̄ = 80, σ = 5.40

• x̄ = 80.63, σ = 7.04

• x̄ = 80, σ = 7.07

Find p(q(x)) when p(x) = 3x + 4 and q(x) = 2x²

• 10x²

• 18x² + 4

• 6x² + 4

• 18x² + 48x + 32

Who is this?

• Buzz
• Woody
• Lumber
• Slink

Tags

CCSS.RI.11-12.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

Find a(b(-2)) if a(x) = -2x + 4 and b(x) = 4x²

• -28

• 36

• -124

• None of these.

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

Find (f⋅g)(x) if f(x) = 4x+8 and g(x) = x+3

• 4x²+24

• 4x²+20x+24

• 4x³+12x²+24x

• 4x²+4x+24

Find (f - g)(x) when f(x) = 3x² + 7x and g(x) = 2x² - x - 1

• x² + 8x + 1

• x² + 6x - 1

• 5x² + 8x - 1

• x² + 8x -1