What is the product rule?
f’(x)g(x) + f(x)g’(x)
What is the point slope form of a line?
y-y1 = m(x-x1)
What is the highest exponent in a polynomial called?
The degree
What are supplementary angles?
Two angles that add up to 180 degrees
What is the formula for z-score?
z= (observed value - mean)/standard deviation
Derive the equation y= x4 - 2sin(3x)
y’= 4x3 - 6cos(3x)
Grace bought bananas for $5 per pound and lemons for $2.50 per pound. Write an expression representing the total cost.
C= 5x + 2.50y
Solve for x: 2x+5=11
x=3
What is the formula for the area of a circle?
πr2
What does standard deviation represent?
How spread out a set of numbers is from their average.
What is the notation for summation?
∑
How many solutions does the system of equations have?
y= 25x+2
y= 6(5x-3)
1 solution
Simplify: (x2-4)/(x+2)
x-2
If f(x)= 3x2-2 and g(x)= 4x+2, what is (f+g)(-1)?
-1
reject the Ho!!
If y= ex(x3-3), what is dy/dx?
x3ex + 3x2ex - 3ex
Multiply: (x+2)(x2-2x+4)
x3+8
What is the vertex of the parabola represented by the equation y=x2+4x+1?
If the measures of a triangle are x, 2x, and 3x, what are the measures of each angle?
x= 30o, 2x= 60o, 3x= 90o
P(A|B)=
P(A∩B)/P(B)
Integrate this equation (2x+1)2
4/3x3 + 2x2 + x + C
Factor: 7x2+14x-21
7(x+3)(x-1)
Find all solutions (real or complex): x3-8=0
x=2, x= -1+i√3, and x= -1-i√3
If a treasure chest lies exactly halfway between an oak tree at point (2,4) and a stone wall at point (6,8), what are its coordinates?
(4,6)
What is it called when the null hypothesis is rejected, even though it is true?
A type 1 error