Factoring using the GCF method
3x +9
3(x+3)
n-3.24=41.1
n=44.34
x/y+3x2
No , there is a variable in the denometer
What is observational study
Observing something w/o inferring
y-6>3
y>9
( instructor will check graph.)
15x +45
15(x+3)
x-14.29=25
x=39.29
x5y+9x4y3
Yes, degree of 7
What is an Experiment
A controlled study that you test for results
5x+3 ( greater than or equal to ) 4x+1
x(greater than or equal to) -2
3z-27
3(z-9)
2/3x=-18
x=-27
Find: -2x(-3x-11x+20)
28x2-40x
Define Survey
A weighing of people's opinions and choices that are recorded
( Bonus questions )
x2+2x-63
X=7
13x-39
13(x-3)
-5/8x=20
X=-32
(x2+4x+16)(x-4)
X3-64
Give an example of observational study
( the instructor will check for right answers )
Ex: trying to figure out how long students take to finish their quiz
( bonus question)
x2-4x-45
(X-9) (x+5)
6b+12
6(b+2)
5x-3=-33
X=-6
(2x2-4x+5)(3x-1)
6x3-14x2+19x-5
Give an example of an experiment
( instructor will check for correct answers)
Ex: Testing out two different conditioner brands on your hair
( bonus question)
x2+7x-8
(X+8) (x-1)