The mean of the values given is 6.5.
The mean in mathematics is found by finding the sum of all the values (adding the all together), then dividing the sum by the number of values there are.
If you add all the values given in the set above, you will get 65. There are 10 values, so you take 65 and divide it by 10. Thus getting 6.5 as your answer.
I hope this helps!
Answer:
The new triangle will have a perimeter of 36 cm, and an area of 18 cm2.
Step-by-step explanation:
Given that the triangle whose perimeter is 12 cm and its surface is 6 cm2, and is lengthened by a scale factor of 3 to produce a similar triangle, the perimeter and surface of the new triangle arise from the following calculation:
Perimeter = 12 x 3 = 36 cm
Area = 6 x 3 = 18 cm2
Thus, the new triangle will have a perimeter of 36 cm, and an area of 18 cm2.
Answer: It's the first one! 5/12 - 5/6
Step-by-step explanation: Good luck :)
3x-6+9+5=25 is the first step
