Answer:
c: -7
Step-by-step explanation:
the slope of a perpendicular line is the negative reciprocal of the original line
a way to find this is to flip the numerator and the denominator of a slope and make it negative
1/7 --> 7 --> -7
that would be your slope
Answer:
x = -1
y = -5
Step-by-step explanation:
9(2y+9) - 8y = 31
18y + 81 - 8y = 31
10y + 81 = 31
10y = -50
y = -5
2(-5) + 9 = x
-10 + 9 = x
-1 = x
X=11ft
25-6=14
So ur answer is actually 3
40.8 because u take 15 percent of 48 and subtract it from 48
7.2 - 48 = 40.8
Answer:
a) decay
b) 2,950,000
c) 0.025
d) 
e) 2,409,123
Step-by-step explanation:
<u>Part (a)</u>
Exponential DECAY, since the population was decreasing annually.
<u>Part (b)</u>
Initial amount = 2,950,000 people (in the year 2000)
<u>Part (c)</u>
Decay factor = 2.5% = 0.025 (in decimal form)
<u>Part (d)</u>
General form of exponential decay function:

where:
- a = initial amount
- r = rate of decay (in decimal form)
- x = time (in years)
Given:


<u>Part (e)</u>
To determine the city's population in 2008:

