Roots and Squares and cubes
perfect Square or perfect cubet: x2
perfect square
Solve: x2=49
What is x=7 or x=−7?
What is the formula for the pythagorean theorem?
a2+b2=c2
Is 3/8 rational or irrational?
Rational
Which is greater: square root of 10 or 3?
What is square root of 10?
perfect square or perfect cube : 42
perfect square
Solve x3=125.
x=5
What makes a triangle a right triangle?
What is ithas a 90 degree angle
Is 0.3333… rational or irrational?
Rational, because it is a repeating decimal.
(square root of 12), 3 ,(square root of 15)
Put the numbers in order from least to greatest.
what is 3, (square root od 12) , (square root of 15)
perfect square or perfect cube: 64
both
Solve: x3=27
What is x=3?
The Pythagorean Theorem can only be used with this type of triangle
What is a right triangle?
Is the square root of 20 rational or irrational?
Irrational, because 20 is not a perfect square.
Which is greater: square root of 30 or 5? Use an approximation.
what is the square root of 30 since the square root of 25 is 5 the square root of 30 must be greater
Perfect square or perfect cube : 23
what is perfect cube
Solve x2=81. Explain why there are two solutions.
x=±9, because both (9)2 and (−9)2 equal 81.
A right triangle has legs of 6 and 8. Find the hypotenuse.
What is 10?
Is "pi" (3.14159...) rational or irrational?
What is irrational?
Order these from least to greatest: (square root of 5), 2, (square root of 10)
What is 2,(sqro 5), (sqro10)?
perfect square or perfect cube : -1
perfect cube
Solve x2= 1/81
x = +1/9 or -1/9
A right triangle has legs of 9 and 12. Find the hypotenuse.
What is 15?
Whiy Is 0.75 rational or irrational?
what is It can be written as 3/4.
what is it is a terminating decimal
Which is greater: (square root of 50) or 7? Explain using an approximation.
What is, since the square root of 49 is 7 then the square root if 50 must be greater than 7