Answer:
5/28 or 0.17857142
Step-by-step explanation:
use the calculator lol
Answer:
The third one is right.
Step-by-step explanation:
$14 - covert 2/5 to a decimal (or percentage) = 0.4 (40%) and then multiply by 35.
Clearly, |S| = 50.
Count the multiples of 2 between 1 and 50:
⌊50/2⌋ = ⌊25⌋ = 25
(where ⌊x⌋ denotes the "floor of x", or the largest integer that is smaller than or equal to x; in other words, round <u>down</u> to the nearest integer)
Count the multiples of 3 between 1 and 50:
⌊50/3⌋ ≈ ⌊16.667⌋ = 16
Since LCM(2, 3) = 6, the sets of multiples of 2 and multiples of 3 have some overlap. Count the multiples of 6 between 1 and 50:
⌊50/6⌋ ≈ ⌊8.333⌋ = 8
Then by the inclusion/exclusion principle, we remove from S
25 + 16 - 8 = 33
elements, so that the new set S contains 50 - 33 = 17 elements.
1.
(100 + d^2)(d + 10)(d - 10)
Use the rule of splitting perfect squares to get the factors.
2.
x^4y^8z^2(x^2z^6 - y)
The first term is the greatest common factor.