SCIENTIFIC NOTATION
Write 6.12 x 102 in its full form.
612
Simplify the following: 6a + 4a + 4b + 7
10a + 4b + 7
In the coordinates (5, -3) , which number is x and which is y?
x = 5, y = -3
What is the name of the longest side of a right-angled triangle?
Hypotenuse.
Solve: x - 9 = 2
11
Write 0.00852 in scientific notation.
8.52 x 10-3
Simplify the following: k+ 3n - 2n + 4k
5k + n
Does the coordinate (4,16) fall on the line x = y/4?
Yes.
What is the equation for Pythagorean Theorem?
a2 + b2 = c2
Write an expression to represent the following: x is greater than 11
x > 11
Write 12000000 in scientific notation.
1.2 x 107
y + 36
What is the y-coordinate if the line is y =5 + 3x, and x is 3.
y = 14
A 12 ml container has 180 calories. How many calories are in 1ml of soda?
15
Solve: x/4 + 7 = 3
x = -16
The population of Taiwan is 2.211325 x 107. Write this in its full number.
22113250
Simplify and solve: x + 3x = 48
x = 12
What is the coordinate for x if the line is y=3x and y is 12?
x = 4
Name a ratio that is equivalent to the ratio 2:3.
4:6, 6:9, 8:12, etc.
State 3 symbols that can fill in the blank to make the equation correct: 6(4)____24
=, More than/Equals to, Less than/Equals to
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
Can this equation be solved? If yes, solve. If no, explain why: 14a + 4b + 7
Cannot be solved. There are two unknowns with undetermined values.
What is the coordinate for x if the equation is x=y/2.5, and y is 25?
10
On a map, the distance between Malacca and Petaling Jaya is 3.2cm. The scale of the map is 1cm = 25 km
80 km.
There was a change in the population between Kuala Lumpur between 1961 (650,000) and 1990 (725,000). If the annual increase was at a fixed rate, write an equation to represent the change (x) between the population between 1961 and 1973.
x = (725,000 - 650,000) x (1973 - 1961 + 1)