Perfect Squares and Cubes
What is the square root of 81?
+/- 9
What is "50 minus the square root of 121" ?
39
Estimate the square root of 52
in between square roots of 49 and 64 which is 7 and 8. 52 is 3 away from 49 and 8 from 64 meaning it is closer to 7 the answer must be less than 7.5
7.2 or 7.3
What is the side length of a square with a perimeter of 36ft?
9ft
Convert 5/9 to a decimal
0.5 repeating
What is 33?
27
What is "6 - 2 (square root of 64)"
-10
Estimate the square root of 31
31 is in between the perfect square roots of 25 and 36 which is 5 and 6. 31 is 6 away from 25 and 5 away from 36 which makes it closer to 6.
5.6 or 5.7
What is the area of a square with the side lengths of 9 in.?
A= s2
81 in2
Write and label each part of the slope-intercept formula
y=mx+b
y is the y value
m is the slope
x is the x value
b is the y-intercept (when x=0)
What is the square root of -144?
No real solution, you cannot square root a negative number
What does x equal?
"x2 + 12 = 61"
x= +/- 7
Estimate the cube root of 21
The cube root of 21 is in between the perfect cube roots of 8 and 27 which is 2 and 3. 21 is 13 away from 8 and 6 away from 27. This means that the estimation is going to be closer to 3.
2.7 and 2.8
What is the volume of a cube with the side length of 7cm?
V=s3
343 cm3
What does 0.57 repeating convert to in fraction form
57/99 => 19/33
What is the cube root of -8/27 ?
-2/3
What does x equal?
"-3x3 = 24"
x= -2
Estimate the cube root of -121
121 is in between the perfect cube roots of 64 and 125 which is 4 and 5. 64 is 57 away from 121 and 4 away from 125. This means the estimation is closer to 5.
Don't forget the negative!
-4.8 or -4.9
What is the side length of a cube with the volume of 1000 cubic meters?
V=s3
10 meters
Convert 0.272727... to a fraction
27/99 => 3/11
If you were to estimate the square root of 72, which two perfect squares would this number be between?
82 = 64
92 = 81
What does x equal?
"-4x2 - 9 = 7 "
No real solution, you can not square root a negative number
Estimate:
5 (square root of 92)
92 is in between the perfect square roots of 81 and 100 which is 9 and 10. 92 is 11 away from 81 and 8 away from 100 making it closer to 10. This estimation is 9.6 or 9.7
9.6(5)= 48
9.7(5)= 48.5
what is the side length of a cube with the surface area of 54 squared in?
SA=6 (s2)
3 in
What is the slope with these values?
(2,4)
(8,5)
m= 1/6