Answer:
JL = 21
Step-by-step explanation:
Given that K is on line segment JL, therefore:
KL + JK = JL (according to segment addition postulate)
KL = 2x - 2
JK = 5x + 2
JL = 4x + 9
Thus:
Solve for x
Subtract 4x from both sides
Divide both sides by 3
Find the numerical length of JL
Plug in the value of x
USE PHOTOMATH , it will solve it and show you how to do it , I use it for maths questions like this !!!!!!
PEMDAS
15-(37+8)/3
15-45/3
15-15
0
Calculate for the mean/ average of the given numbers:
μ = (1 + 2 + 3 + 4 + 5) / 5 = 3
Then, we calculate for the summation of the squares of differences of these numbers from the mean, S
S = (1 - 3)² + (2 - 3)² + (3 - 3)² + (4 - 3)² + (5 - 3)²
S = 10
Divide this summation by the number of items and take the square root of the result to get the standard deviation.
SD = sqrt (10 / 5) = sqrt 2
SD = 1.41
Thus, the standard deviation of the given is equal to 1.41.
What is 7x5x4, it is 140 so the volume is 140in^3 its a pretty simple problem
