Rational and Irrational Numbers
Rational or irrational: the square root of 25
Rational: 5
Solve for x: 3x + 10 = 40
x = 10
The slope of the line with an equation of y = 4/7x + 10
4/7
What is the length of c if a = 3 and b = 4?
c = 5
Write 4,800,000 in scientific notation
4.8 x 106
Rational or irrational: the square root of 2
irrational. the decimal continues and doesn't repeat, therefore it cannot be turned into a fraction.
Solve for x: 2x - 12 = 14
x = 13
A savings plan starts with $25 and adds $50 each week. Write the equation.
y = 50x + 25
What is the length of c if a = 6 and b = 8?
c = 10
Write 4.56 x 10-4 in standard notation
.000456
Turn .888888 into a fraction.
8/9
Solve for x: 5x + 3 = 2x + 15
x = 4
Write the equation in slope-intercept form:
2x + 3y = 9
y = 2/3x + 3
A ladder is 12 feet long and is 5 feet from the base of a house. How high does the ladder reach against the house? Round your answer to the nearest whole number, if necessary.
Approximately 11 feet.
What is Mrs. Weir's favorite color?
Green
State whether the square root of 225 is rational or irrational
rational. 15.
Solve for x: 4(x-2) = 20
x = 7
What is the slope of a vertical (straight up and down) line?
undefined
c = 10 b = 8 a = ?
6
On a number line, which number is the square root of 7 closest to?
3
State whether pi is rational or irrational.
Irrational. Pi cannot be turned into a fraction because the decimal does not repeat
Solve for x: 3(x + 2) = 5x - 4
x = 5
Find the slope of these ordered pairs: (0, 5) (7, -2)
-1
If the shadow of a flag pole is measured at 16 feet long with the end of the shadow reaching 7 feet from the base of the pole, how tall is the flag pole? Round to the nearest tenths place, if necessary.
14.4 feet
Write .18181818 as a fraction
2/11 (18/99 reduced by 9)