Answer:
the last one 
Step-by-step explanation:
Hello,
Answer is <em>Alternate </em><em>interior </em><em>angles,</em><em> </em><em>as </em><em>they </em><em>lie </em><em>on </em><em>same </em><em>line </em><em>but </em><em>in </em><em>opposite </em><em>direction.</em><em>.</em><em>.</em>
<em>Hope</em><em> it</em><em> helps</em><em> you</em><em>.</em><em>.</em><em> </em><em>Pls</em><em> mark</em><em> brainliest</em>
7. 3/5 = 4.5/x
3x= 5(4.5)
x = 15/2
8. 6/4 = 9/x
6x= 45
x= 15/2
8. since triangle ABC and ADE are identical,
angle E is also 30 degrees
so angle D = 180-(30+70)=80 degrees
9. 9/3 = x/5
3x = 45
x = 45/3 = 15
Answer:
1. b ∈ B 2. ∀ a ∈ N; 2a ∈ Z 3. N ⊂ Z ⊂ Q ⊂ R 4. J ≤ J⁻¹ : J ∈ Z⁻
Step-by-step explanation:
1. Let b be the number and B be the set, so mathematically, it is written as
b ∈ B.
2. Let a be an element of natural number N and 2a be an even number. Since 2a is in the set of integers Z, we write
∀ a ∈ N; 2a ∈ Z
3. Let N represent the set of natural numbers, Z represent the set of integers, Q represent the set of rational numbers, and R represent the set of rational numbers.
Since each set is a subset of the latter set, we write
N ⊂ Z ⊂ Q ⊂ R .
4. Let J be the negative integer which is an element if negative integers. Let the set of negative integers be represented by Z⁻. Since J is less than or equal to its inverse, we write
J ≤ J⁻¹ : J ∈ Z⁻
Answer:
the straight line will always equal 180 degrees.
180-125-35=20
the answer for the missing degree is 20
