Answer:
<h2>B. y - 1 = -3(x - 9)</h2>
Step-by-step explanation:
The point-slope form of an equation of a line:
m - slope
(x₁, y₁) - point
The formula of a slope:
We have the points (9, 1) and (4, 16). Substitute:
Answer:
Degree of freedom = 19
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 20
For a t-test hypothesis it was claimed that the population mean is greater than 89 second.
1) df
Df denotes the degree of freedom.
- The Degrees of Freedom refers to the number of values involved in the calculations that have the freedom to vary.
2) Degree of freedom = n - 1
where n is the sample size
Degree of freedom = 20 - 1 = 19
<h2>
Greetings!</h2>
Answer:
Angle A is 118°
Step-by-step explanation:
All angles in a circle add up to 180, so this means that all the measurements of the three angles add to 180:
x + 2x + 13 + x - 8 = 180
Clean it up:
3x + x + x + 13 -8
5x -5 = 180
To isolate the 5x, you need to move the +5 over to the other side, making it a negative 5:
5x = 180 - 5
5x = 175
Now divide each side by 5 to get the value of 1x:
x = 35
So angle A is:
3x + 13
3(35) + 13 = 118
<h3>So angle A is 118°</h3>
<h2>Hope this helps!</h2>
Answer:
Statement A and C are true about the normal distribution.
Step-by-step explanation:
We have to identify true statements for normal distribution.
A) True
The mean, median and mode for a normal distribution are same
B) False
The parameters of normal distribution are mean and the standard deviation.
C) True
According to Empirical rule for normal distribution about two-third of data lies within plus or minus one standard deviation from the mean.
D) False
Normal distribution is a continuous probability distribution.
If you spin on the spot and go completely around just once and stop, you "did a 360" since you moved in a circle and circles have 360 degrees.
So a 720 would be two complete turns and a 540 would be 1 and a half complete turns.
The number is <em>the amount of degrees they rotated through</em>. What's cool is, snow boarders do this while in mid air as a trick when going over jumps.
