Quadratic Equations
solve x2=9
x=3 x=-3
what is sin(30)?
1/2
solve x+5<12
x<7
simplify: (2x+3)+(4x-5)
6x-7
what is the standard of a quadratic equation?
ax2+bx+c
solve x2+5x+6
x-2 and x-3
what is tan(45)?
1
solve 3x≥15
x≥5
simplify:(3x2-2x+1)-(x2+4x-3
2x2-6x+4
what is the part of the quadratic formula that tells you the number of real solutions?
Discriminant
solve x2+4x-5=0
x=1 or x=-5
find the missing side:
A right triangle has legs 5 and 12.What is the hypotenuse?
13
solve 2x-4<10
x<7
Multiply:(x+2)(x+5)
x2+7x+10
what is tan?
opp/adj
solve 3x2-12=0
x=0 or x=4
If a right triangle has an angle of 60 and the hypotenuse is 10,what is the length of the side opposite the angle?(Round to the nearest tenth).
8.7
solve -2x+6>14
x<-4
Evaluate:x2-3x+4 When x=-2
14
Which trig function is a ratio of adj/hyp?
Cosine
solve 2x2-4x-6=0
x=3 0r x=-1
solve: sin(30)+cos2(30)
1
solve: 4x-3≤2x+5
x≤4
Multiply: (x-3)(x2+2x+1)
x3-x2-5x-3
What is the hyp in a right triangle?
The side opposite the right angle