<h3>
Answer: x = 40</h3>
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Work Shown:
A+B+C = 180 ..... three angles of any triangle add to 180
(2x+10)+(x)+(2x-30) = 180
5x-20 = 180
5x = 180+20 .... adding 20 to both sides
5x = 200
x = 200/5 ... dividing both sides by 5
x = 40
This is the measure of angle B
We can stop here.
If you need to know the values of the other angles, then,
- angle A = 2x+10 = 2*40+10 = 90
- angle C = 2x-30 = 2*40-30 = 50
Then note how A+B+C = 90+40+50 = 90+90 = 180 which helps confirm our answer.
1. arithmetic, arithmetic, geometric
2. 3, 6, 9, 12, 15
3. -7n + 5
4. 2.4
5. 45
6. 4n + 137
Answer:
Option B.
Step-by-step explanation:
The given equation is
...(1)
The standard form of a circle is
...(2)
where, (h,k) is center and r is radius of the circle.
On comparing (1) and (2) we get
It means center of the circle is (-5,3) and radius of the circle is 4 units.
Therefore, the correct option is B.
Answer:
i dont speak what ever this is
Step-by-step explanation:
Answer:
6:12
Step-by-step explanation:
Add 1+2=3
18/3=6
6x1=6
6x2=12
Out it back in the ratio
6:12
