Answer:
The value of x would be roughly -6.14
Step-by-step explanation:
To find x, all we need to do is put each of these values in for the variables that they represent. y obviously goes in for y. y-intercept is the b value, and slope is the m value.
y = mx + b
-58 = 7x - 15
-43 = 7x
-6.14 = x
Answer:
116 students
Step-by-step explanation:
The standard deviation for a proportion is:
For any measured sample proportion x, the z score is given by:
The population proportion is 0.53
At the 14th percentile, the corresponding z-score is z =-1.08.
Since 0.48 is at the 14th percentile, the standard deviation is:
Therefore, the sample size 'n' is given by:
The sample size must have been of 116 students.
Well you divide the 75 percent and the 18 and you will get your answer
Answer:
y = (-3/4)x -2
or: y = -0.75x -2
Step-by-step explanation:
First, find the slope of the line that it parallel to. Using equation
slope m = (y2-y1)/(x2-x1),
slope of line that passes through points (4, 0) and (0, 3)
= (3 - 0) /( 0-4)
= -3/4
Since the lines are parallel, both of them have the same slope, which is -3/4.
The point (0, -2) is actually the point of y -intercept (c) of the new line, so we can simply use the slope-intercept form to find the equation of line.
y = mx + c
y = (-3/4)x + (-2)
y = (-3/4)x -2
7(2)=14
14+7=21
So the answer is 2.
