Inequalities
the less than sign
<
order these numbers from least to greatest
0, 1, -1, -0.01, 0.01, -0.004, 0.002
-1,-0.01, -0.004, 0, 0.002, 0.01, 1
what is the are of a rectangle with a length of 3ft and a width of 7ft?
don't forget the units
21ft2
solve for x
x+2 = 6
x = 4
A graph is proportional if it ...
Is a straight line
&
it passes through the origin (the middle)
< > Are these signs closed or open?
closed
what is the mode(most) of these numbers
1, 3, 7, 12, 3, 6, 3
3
find the surface area of a rectangle where
L=3, W=4, H=5
SA= 2LW+2WH+2HL
94
2x= 6
x=3
k =
y divided by x
graph x>3
<-------------O------------>
3
what is the median(middle) of these numbers
1, 3, 7, 12, 3, 6, 3
hint: Put them in order
1,3,3,3,6,7,12
3
If the diameter of a circle is 12 meters, what is the radius?
6 meters
x - 6 = -12
x = -6
is this table proportional?
if yes, what is the k value (the constant of proportionality)
x | y
2 | 8
4_ | 16
__8__| 32
YES
k=4
graph x< -4
<-------------.------------->
-4
A dice has six sides numbered 1-6
what is the probability(chance) of rolling a 2 or a 6
2/6 or 1/3
Circumference is.....
Pi * Diameter
2x-3=3
x=3
what is the equation for INVERSE proportionality?
k=
y*x
solve the inequality
2x-7>7
x>7
what is the mean of these numbers
1, 3, 7, 12, 3, 6, 3
hint: add them and then divide
5
Find the are of a circle, given that the diameter is 6 ft
hint: A=3.14 r2
28.26 ft2
(x/4) - 3 =1
16
What is the equation for y
y=
k*x