Answer:
f(5)=80
Step-by-step explanation:
5^2=5*5=25
(4/5)(25)=4(5)=20
12(5)=60
20+60=80
Answer:
Step-by-step explanation:
difference of x-coordinates = 4-(-6) = 10
difference of y-coordinates = -1-9 = -10
partition the differences into a ratio of 1:4
10 × 1/(1+4) = 2
-10 × 1/(1+4) = -2
(-6+2,9-2) = (-4,7)
Answer:
green part is 4m²
pink part is 91m²-4m² = 87m²
P = ce^(kt)
make p = 2c because doubling will be
like c-->2c, so if p = 2c, then
p = ce^(kt)
2c = ce^(kt)
2c/c = (ce^(kt))/c
2 = e^(kt)
Now take natural logarithm (ln) of both sides of the equation:
ln (2) = ln (e^(kt))
0.693 = kt×ln e
**this is because ln of an exponent makes the exponent become multiplied by the ln,
and ln e = 1
0.693 = kt×ln e
0.693 = kt×1, and t = 11 years
0.693 = k(11)
0.693/11 = 11k/11
k = 0.063, multiply by 100 to get %
k = 6.3%
answer is C
