Answer:
IQR = 9
Step-by-step explanation:
The IQR = Q3 - Q1
So IQR = 87 -78 = 9
Non-collinear points are a set of points that do not lie on the same line. Don’t know if that’s what you were asking but yeah those are called Non-collinear points.. have a nice day or night or whatever lol
Answer: She started with $160.
It will take 6 weeks before she has less than half of what she originally invested.
Step-by-step explanation:
If her money is decreasing in value by 11% each week, it means that the rate at which it is decreasing is exponential.
We would apply the formula for exponential decay which is expressed as
A = P(1 - r)^t
Where
A represents the value of the investment after t weeks.
t represents the number of weeks.
P represents the initial value of the investment.
r represents rate of depreciation.
From the information given,
A = $142.40
r = 11% = 11/100 = 0.11
t = 1
Therefore
142.40 = P(1 - 0.11)^1
142.40 = P(0.89)
P = 142.4/0.89
P = 160
For her to have half of what she invested originally, then
80 = 160(0.89)^t
80/160 = (0.89)^t
0.5 = (0.89)^t
Taking log of both sides to base 10
Log 0.5 = log0.89^t = tlog0.89
- 0.3010 = - 0.051t
t = - 0.3010/- 0.051
t = 5.9
Approximately 6 weeks
Answer:
-4
Step-by-step explanation:
Indeed, the y-value changes by 4 when the x-value changes by 1. However, the y-values <em>decrease</em> when the x-values increase. That means the slope is <em>negative</em> 4.
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Any line that goes down to the right has a negative slope. Its slope is positive if it goes up to the right.
Answer:
x=6
y=3
Step-by-step explanation:
y(side)= x
x(side)=2x
3rd side (3) = x
x=3;
x= 2(3)=6
y=(3)=3