Answer:
Step-by-step explanation:
14 + x = y
x = y - 14
Answer:
4
Step-by-step explanation:
Mary means it's a right triangle and therefore the other two angles are acute, if the two angles are congruent then it's an isosceles right triangle. if not the same it's a scalene right triangle
Mary has to know when classify triangles by angle measure it has to be one type of angle either a right, acute or obtuse
by sides isosceles and scalene
Hope this helps
Answer:
Step-by-step explanation:
We are given a ΔKLM, in which KL=LM=13 in and KM=10 in which means two sides of the given triangle are same and thus is an isosceles triangle.
Its median drawn from L to the KM will be altitude. Therefore, ΔKLN and ΔLMN are right triangles.
In ΔKLN, using the pythagoras property, we have
Now, Area of triangle= 1/2×base×height
=1/2×10×12
=60 squared inches.
The range is the highest number minus the lowest number. In this case, the highest number is 10 and the lowest number is 6, so the range is 10-6=4
To find the students in the group, simply add up the frequency from each mark. I'll give you an example solution, but I challenge you to do this on your own!
For example, say that there are 4 students with 3 marks and 6 students with 4 marks. There are then 4+6=10 total students in the group
To find the mean, simply add up all up the marks with the amount of frequencies and divide it by the amount of students.
Take our example from earlier - we can write it as a list. Since there are 4 students with 3 marks, we have
3, 3, 3, 3 ( 3 four times)
Since there are 6 students with 4 marks, we have
4, 4, 4, 4, 4, 4 (4 six times)
Add them all up, and divide them by the total amount of students (10) to get
(3+3+3+3+4+4+4+4+4+4)/10=(3*4+4*6)/10=36/10=3.6
Good luck, and feel free to ask questions if you're confused!
