LIKE TERMS
combine like terms:
6a + 4a + 4b + 7
10a +4b+ 7
In the coordinates on a Cartesian Plane, eg (5,8) which number equals x and which number equals y?
x is the first number in the pair; y is the second number.
Write 6.12 x 102 in standard notation
612
Solve for x:
x - 9 = 2
11
What is another name for the longest side of a right triangle?
Hypotenuse
Combine like terms:
k + 3n - 2n + 4k
5k + n
For x = y/4
is (4,16) a point on the line.
Yes
Write 0.00852 in scientific notation
8.52 x 10-3
Write an expression to represent :
x is greater than 11
x > 11
What is the equation for Pythagoras Theorem?
a2 + b2 = c2
Combine like terms and solve for x:
x + 3x = 48
x = 12
For y = 5 + 3x
is (3,7) a point on the line.
No
Write 12,000,000 in scientific notation
1.2 x 107
What symbol would go here?
6(3) _____ 24
18 < 24
A 300ml container of soft drink has 900 calories. How many calories are in one ml of the soft drink?
3
Solve this expression:
14a + 4b - 10a - 4b + 7
4a+7
For a line with equation y = 3x,
when x =4, what is the coordinates?
(4, 12)
The population of Taiwan is 2.211325 x 107.
Write this in standard notation.
22,113,250
Is 20 a solution for this equation?
2x>40
No
x>20, therefore x=20 is not a solution.
Name a fraction that is equivalent to 2/3
Possibilities: 4/6, 6/9, 8/12, etc
Expand then combine like terms:
4(y + 9) - 3y
y+36
For x= y/2.5,
when x =10, what is the coordinate?
(10, 25)
The mass of the earth is 5,980,000,000,000,000,000,000,000 kg. Write this in scientific notation.
5.98 x 1024
Solve for x:
x/4 + 7 = 3
x = -16
On a map, the distance between Charleston and Mt. Pleasant is 3.2 cm. The scale is 1 cm = 20 km. What is the actual distance between the two towns?
64 km