Answer:
Step-by-step explanation:
11 a).
20x + 5 + 24x - 1 = 180
44x = 176
x = 176 / 44
x = 4
b). 6x = 5x + 10
x = 10
Answer:
D. The city's population is decreasing at a rate of 15 people each year.
Step-by-step explanation:
We presume x=0 in 2005, so the population in 2005 is ...
P(0) = -15·0 +53,708 = 53,708 . . . . . . not 53,703
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In 2011, the population would correspond to that for x=6, so would be ...
P(6) = -15·6 +53,708 = 53,618 . . . . . . not 53,813
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The x-coefficient of -15 means that when x increases by 1, the population decreases by 15. The population <em>decreases</em> by 15 each year, not <em>increases</em>.
Answer:
a function of the coefficients of a polynomial equation whose value gives information about the roots of the polynomial.
Answer:
Step-by-step explanation:
We want to find the equation of the line that includes the points (7, -7) and (0, 3).
First, we will find the slope of the line using the slope formula given by:
So, the slope of our line is:
Next, notice that the given point (0, 3) is our y-intercept.
Slope-intercept form is given by:
Where m is the slope and b is the y-intercept.
Therefore, by substitution, we acquire that our equation is: