Answer:
option D
Step-by-step explanation:
(x-9) is a factor
x-9 =0 so x=9
now we plug in 9 for x and see which polynomial gives us remainder 0
A. x^2 - 6x +9 = 9^2 - 6(9) + 9 = 36
Remainder = 36 so (x-9) is not a factor
B) x^2 + 16x + 63= 9^2 + 16(9) + 63 = 288
Remainder =288 so (x-9) is not a factor
C) x^2 + 14x + 45= 9^2 + 14(9) + 45 = 252
Remainder = 252 so (x-9) is not a factor
D) x^2 - 12x + 27= 9^2 -12(9) + 27 = 0
Remainder = 0 so (x-9) is a factor
Answer:
3
Step-by-step explanation:
21 can be divided by 3 also 36
Answer:
3 bouquets
Step-by-step explanation:
Both numbers are divisible by 3, so after division we have 3 groups of 7 carnations, and 3 groups of 12 tulips. 7 is no longer divisible, so if the desire is an even bouquet then we can only make 3 bouquets of 7 carnations and 12 tulips
A. 7 s; 30 ft
B. 3.5 s; 366 ft
C. 3.5 s; 618 ft
D. 3.5 s; 226 ft
Friend: 18; You: 18
Friend: 54; You: 18
Friend: 18; You: 54
Answer:
Friend: 18; You: 54
Step-by-step explanation:
You and your friend are rolling number cubes.
Each cube has 6 sides with the numbers 1 to 6.
Total Outcomes=36
{1,1};{1,2};{1,3}{1,4};{1,5};{1,6}
{2,1};{2,2};{2,3}{2,4};{2,5};{2,6}
{3,1};{3,2};{3,3}{3,4};{3,5};{3,6}
{4,1};{4,2};{4,3}{4,4};{4,5};{4,6}
{5,1};{5,2};{5,3}{5,4};{5,5};{5,6}
{6,1};{6,2};{6,3}{6,4};{6,5};{6,6}
If a sum of 7 is rolled, your friend gets 1 point.
Favorable outcomes for friend = {1,6};{2,5};{3,4};{4,3};{5,2};{6,1}=6
Total outcomes = 36
So, probability of getting a sum of 7 =
Since there are 108 rolls
So, expected score of friend =
If a 2, 3, or 4 is rolled, you get 1 point.
So, probability of getting 2 =
So, probability of getting 3 =
So, probability of getting 4 =
So, So, probability of getting 2,3 or 4 =
So, your expected score =
So, option D is correct.
Hence expected score of friend is 18 and yours expected score is 54