19).
The probability of landing on heads the first time is 1/2.
The probability of landing on heads the second time is 1/2.
The probability of landing on heads both times is
(1/2) · (1/2) = 1/4 = 25% .
20).
The volume of the solid deck is
(length · width) · (height)
= (24 cm²) · (52 · the thickness of each car) .
3:4 = 3/4
3/4 = 3 divided by 4
3 divided by 4 = 0.75
0.75 = 75%
C. 75%
None of the above because no multiples of 5 have negative numbers.moreover b,c,d contains a even number except a which is also a negative number
Let p (x) = x^1 - x^-1 +x^0
p (2) = 2 -1/2 +1
=( 4 -1+2)/2
= 5/2
