Answer:
x=7
Step-by-step explanation:
CD=DA
5X-6=3X+8
5X-3X=8+6
2X=14
X=7
Answer:
4,752
Step-by-step explanation:
18(182+82)
18(264)
4,752
Answer:
27. C
28. D
Step-by-step explanation:
The average of all grades in his fencing class, including the upcoming one, (all grades summed up divided by the amount of grades) must be equal to 86 (percent), hence C is the right answer for 27.
Solving this equation gives:

So D is the right answer for 28.
Answer: Option C

Step-by-step explanation:
The arc length is calculated as

Then

We know that

If BC is the diameter of the circumference then the radius R is:



Now we convert the anglo from degrees to radians
Finally


Answer:
I dont under stand sorry :(
Step-by-step explanation: