Answer:
A,B, and C
Step-by-step explanation:
25%of 24 is 6, 24-6=18(new price)
A.24-(0.25×24)=24-6=18
B.(0.75)×24=18
C.(0.25×24)×3= 6×3=18
This exponential growth/decay (in this case decay because r<1) of the form:
f=ir^t, f=final value, i=initial value, r=common ratio or "rate", t=time.
Since the population decreases by 4.5% each year the common ratio is:
r=(100-4.5)/100=0.955 so we can say
P(t)=8500(0.955^t)
....
7000=8500(0.955^t)
14/17=(955/1000)^t taking the natural log of both sides
ln(14/17)=t ln(955/1000)
t=ln(14/17)/ln(955/1000)
t≈4.22 years (to nearest hundredth of a year)
Since t is the years since 2010, the population will fall to 7000 in the year (2010+4.22=2014.22, more than four years will have elapsed) 2015.
Could you add an attachment like a screenshot of your question?
Answer:
She should ski on Slope B because it is steeper
Step-by-step explanation:
Slope A
We need to find the "slope"
15/24 = 5/8
Slope B
12/16 = 3/4
To compare, we need a common denominator
5/8 3/4*2/2
5/8 6/8
<
Slope B is steeper because the slope is greater
She should ski on Slope B because it is steeper
Plug in the values.
3x^2-2y
3*3^2-2(5)
3*9-10
27-10
17
Next one.
2x^2-3y
2*3^2-3(5)
2*9-15
18-15
3
17-3= 15
The value of 3x^2-2y exceeds 2x^2-3y by 15.
I hope this helps!
~kaikers
