In order to rationalize the denominator of each expression, we need to multiply the expression by the same radical in the denominator, this way we can remove the radical from the denominator.
9)
10)
11)
12)
Step-by-step explanation:
Area = pi × r²
144 pi cm² = pi × r²
144 pi ÷ pi = r 2
root 144 = r
12 cm = r
diameter = 2r = 2(12) = 24 cm
a) range of traditional= 84.6-56.1= 28.5
range of flipped is 91.5-63.8=27.7
the flipped course has more dispersion
c)range is now be : 601-56.1=544.9
Answer:
x(x-2)
Step-by-step explanation:
X^2-2x
x(x-2)
10% = 6
25% = 15
50% = 30
20% = 12
