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:
86.7cm
Step-by-step explanation:
((5.95x5.1)/2)x4=60.69
5.1x5.1+60.69=86.7cm
good luck!
Answer:
The length of each blue trim is 17.2 inches
Step-by-step explanation:
Given
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Required
The length of each blue trim
Since all 4 triangles are equal, then the dimension of 1 triangle is:
The hypotenuse (x) of the triangle blue trim is represented by the blue trim
So:
This gives
Take square root
Answer:
10.75 , 10 (6/24),13/20,-10(6/25)
I encountered this problem before but it had choices. If this problem had these choices:
<span>A) 2 and 5
B) 3 and 5
C) 4 and 5
Then the correct answer is A) 2 and 5.
We will use the tangent ratio.
tan</span>Θ = opposite/adjacent
tan 22° = 2/5
0.404 = 0.40
Thus the two numbers that represent the lengths of the legs of the right triangle are 2 and 5.
