Answer:
85
Step-by-step explanation:
got it right
Answer:
Step-by-step explanation: Dot plot for movies seen by a students in a month
To Find : measures of spread
Solution:
Movies frequency cumulative frequency
0 1 1
1 0 1
2 0 1
3 0 1
4 3 4
5 8 12
6 3 15
7 1 16
8 5 21
9 2 23
10 3 26
Range = 10 - 0 = 10
Q2 = (6 + 6)/2 = 6 (13th + 14t)/2
Q1 = 5 7th
Q3 = 8 20th
IQR = Q3 - Q1
= 8 - 5
= 3
Answer:
x-intercept of the graph of the function
is, 
Step-by-step explanation:
Given the function:
......[1]
x-intercept defined as the graph crosses the x-axis.
Substitute value of y = 0 in [1] and solve for x;
or
Take the inverse cotangent of both sides of the equation and solve for x;
3x = arccot (0)
We know the exact value of 
then;

Divide both sides by 3 we get;

Since, the cotangent function is positive in the first and third quadrants.
The period of the function
is
so values will repeat every
radians in both directions.
we have;

Therefore, the x-intercept of the graph of the function
is ;
for every integer n;
Answer and Explanation:
Given : Sides of right triangle 5,12 and 13.
To find : Show that the area of a right triangle of sides 5, 12 and 13 cannot be a square ?
Solution :
If 5,12 and 13 are sides of a right angle triangle then
13 is the hypotenuse as it is largest side.
then we take perpendicular as 12 and base as 5.
The area of the right angle triangle is

Here, h=12 and b=5



The area of the right angle triangle is 30 units.
30 is not a perfect square as 
There is no square pair formed.
Answer:
The mode is 78, for it keeps repeating.