Answer:
B and D
Step-by-step explanation:
a is right because there are numbers that exist that are larger than five and smaller than 9
c is right because again, there are numbers that exist that are larger than -3 and smaller than 7.
b cannot be right because there are no numbers that can be larger than 9 that are also smaller than 5
d also cannot be right because there are no numbers that are less than -5 that are also more than -3.
Explanation:
Since m is a unit in S, then, there exists b ∈ S such that m*b = 1, where 1 is the identity. Since S is a subring of R we have that m ∈ R, and therefore b is also the multiplicative inverse of m in R. The converse isnt true.
The set of real numbers is a Ring with the standard sum and multiplication. Every real number different from 0 has a multiplicative inverse. For example, the inverse of 2 is 1/2. However, 2 is not a unit on the subring of Integers Z.
Answer:
1.) .423
2.).602
3.) .675
4.) .375
5.) .259
6.)8.144
7.).839
8.).017
9.) .966
10.).454
11.).978
12.) 57.28996
13.).5299
14.).809
15.).9004
16.).819
17.).788
18.) 1.235
Basically just change your calculator to degree by pressing the mode button then scroll to degree and pressing it. Then type the questions in with the cos tan and. Sin buttons and that’s the answer.
30+6 = 36, 6/36 = 1/6, the probability is 16.66 %
