Answer:
k = 3.022
Step-by-step explanation:
Given that:
A spherical raindrop evaporates at a rate proportional to its surface area.
The surface area SA of a spherical object is given by the relation:
SA = 4πr²
Write down a differ- ential equation for its volume as a function as a function of time.
So; to differentiate Volume (V) in respect to time (t) ;then:
Likewise; we know known that the volume of a sphere V =
Thus, from above;
Thus; solving the differential:
So;
we are to find the constant proportionality K
If Volume V = 1 cm³ and the time = 10 sec
0.1 = - 4π k (0.3848 × 1)
0.1 = - 4π k × 0.3848
4π k = 0.3848/0.1
4π k = 3.848
k = 3.848/4π
k = 3.022
Answer:
y < 24
Step-by-step explanation:
multiply both sides by 4 to eliminate the fraction
- y > - 24
multiply both sides by - 1
Remembering to reverse the symbol as a consequence
y < 24 ← symbol reversed due to negative multiplication
Answer:Yes
Step-by-step explanation:
Given
n=390 x=312
Confidence level=99 %
Standard error(S.E.)=
S.E.=
S.E.=0.0202
Confidence interval
Since 0.5 does not lie in interval therefore method appear to be effective
The answer to the first question is (2,5) aka the intersection.