Answer:
28.26
Step-by-step explanation:
First find the radius by dividing the diameter by 2 (6/2 = 3) Now that we know that the radius is 3 you multiply it by 3 because you need the radius squared. (3*3 = 9) and then you multiply 9 by 3.14 and get your answer of 28.26.
Answer:
last option at the bottom.
Step-by-step explanation:
we are told that the the equation
y = 0.73x + 1 represents the Length of the spring when a stretch force is applied,
basically y = length of spring and x = force applied.
from the graph, we can see that when stretch force = 0 (i.e x = 0)
the equation becomes y = 1.
That is to say that the spring has a length of 1 inch when stretch force is zero
(which basically is the same as the last option)
Answer: the answer is option 1 i don’t know but 0.9 divided by 0.3 = 3
Answer:
B
Step-by-step explanation:
Yes, because the sample size is at least 30, and we have a random sample.
We have our sample size to be 33% of the student = 33 student (approx)
- According to conditions of normality which states that the sample size collected from a normally distributed population with 100 students should have a sample size of at-least 30 students.
- This condition approximates that the sample collected is also random and and follows a normal distribution like the population ( i.e total number of students = 100 ) itself.
- However, the spread of the data sigma = 3,000 is very large but it does not invalidates the condition of normally distributed sample, it only means that values are spread wide about the mean = 400.
In the coordinate plane, the length of the line segment that connects points at (0, -1) and (-7, -2) is 7.07 units.
<u>Step-by-step explanation:</u>
Here we have ,in coordinate plane we are given two points (0,-1 ) & ( -7,-2 ).
From Straight line concept, we know that Distance between any two pints in a plane i.e distance between points and is given by:
, Here = and =
Putting values in above formula we get:
⇒
⇒
⇒
=
∴In the coordinate plane, the length of the line segment that connects points at 0, -1 and. -7, -2 is .