Answer:
The equation that models the relationships between 
, the number of hours Mark reads, and , 
the number of pages of the book he reads is:
Step-by-step explanation:
Given:
Mark reads 42 pages every 
hour.
The number of hours is given by =
The number of pages is given by =
The equation can be modeled as:
where 
represents rate of change and 
represents the y-intercept or the initial value.
Rate of change =
The initial value 
as Mark starts reading from 0.
So, the equation is:
Step-by-step explanation:
if14a^2b/7a^2b answer is 2
and if the sign is addition then the answer is21a^2b if subtraction answer is7a^2b
The easiest way to tell whether lines are parallel, perpendicular, or neither is when they are written in slope-intercept form or y = mx + b. We will begin by putting both of our equations into this format.
The first equation,
is already in slope intercept form. The slope is 1/2 and the y-intercept is -1.
The second equation requires rearranging.
From this equation, we can see that the slope is -1/2 and the y-intercept is -3.
When lines are parallel, they have the same slope. This is not the case with these lines because one has slope of 1/2 and the other has slope of -1/2. Since these are not the same our lines are not parallel.
When lines are perpendicular, the slope of one is the negative reciprocal of the other. That is, if one had slope 2, the other would have slope -1/2. This also is not the case in this problem.
Thus, we conclude that the lines are neither parallel nor perpendicular.
Answer:
2
Step-by-step explanation:
A = P( 1+r/n) ^ (nt)
P is the amount invested
r is the rate
n is the number of times per year the interest is compounded
t is the number of years
every 6 months is twice a year
so n is 2
Answer:
3.95
Step-by-step explanation:
the mean is
all numbers added up divided by how many numbers
.8+1+2.7+2.8+3.1+13.3=23.7
there are 6 numbers
23.7/6=
3.95
