Answer:
10x + 2x equals 180 degrees. What would x =?
x = 15º
<em>Hope that helps!</em>
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
Answer: The answer is 2.5
Step-by-step explanation:
I just took the quiz and it was the correct answer.
To solve this problem you must apply the proccedure shown below:
1. You have that:
<span> - The scale model is 11 inches long and 8.5 inches wide.
- The door to her room takes up 1.75 inches.
- The longest wall in Jessica’s actual room is 15 feet long.
2. Therefore, the actual size of the door is:
15 feet=180 inches
1.75 inches(180 inches/11 inches)=28.63 inches
3. If the door in completely open, you must apply the formula for calculate the area of a semicircle:
A=</span>πr²/2
r=28.63 inches
A=π(28.63 inches)²/2
A=1288.11 inches²
The answer is: 1288.11 inches²
Answer:
A⊆B
Step-by-step explanation:
C⊆D if the set C contains only elements from set D.
Let's look at the first choice:
B⊆A is not true because 3 and 4 are not in A.
Second choice:
3⊆A is not true because 3 is not a set; it is an element.
Also, 3 is not even in {1,2}.
Third choice:
See explanation for choice 2.
Fourth choice:
A⊆B is true because all the elements in A are contained in B.
That is the elements 1 and 2 are contained in the set {1,2,3,4} which is B.
