Percent Question! Please help? Mathematics Assignment Help

1. Goth lifestyle is:

   		A culture
   		A subculture
   		A counterculture
   		What is the place of Goth culture in mainstream U.S. culture?

You
have a computer running Windows 7 Professional. Which version of Windows can
you perform an in-place upgrade to?

2. Where is the vertex of the parabola?

y = x2 + 2x + 1

Above the x-axis

Below the x-axis

On the x-axis

On the y-axis

3. Use the discriminant to determine how many x-intercepts
the graph of the equation has.

y = – 4×2 + 4x –
1

zero

one

 two

three

4. In which direction does the parabola open?

y = 3×2 – 5x – 10

down

right

left

 up

5. What are the x-intercepts of the quadratic function?

y = x2 – x – 2

 2 and 1

–2 and 1

 2 and –1

  1

The probability that Janice will attend math class today is 62%. The probability that Ellie will attend math class if Janice attends is 100%. Ellie will not attend the class unless she hears from Janice first. What is the probability that both will attend the class?

• 73%

• 100%

• 81%

• 62%