Answer:
<h2>x = -3</h2>
Step-by-step explanation:
Is your question "There is enough batter to make 18 cupcakes. How many cupcakes cpuld make if they were 3/4 the original size?" Because that makes more sense and can be answered.
How it is now is the answer. No common terms, can’t simplify, nothing. Just stays like that.
Answer:
a) t = 0,22 sec
b) 0.85 lts/sec
c) Interval for inhalation [ 0 < ( π/4.5 t) ≤ π ]
Interval for exhalation [ π < ( π/4.5 t ) ≤ 2π ]
Step-by-step explanation:
The respiratory cycle is approximated
r(t) = 0.85 sin (π/4,5t)
a) how long is the respiratory cicle.
As for problem statement a respiratory cicle is time between two consecutive breath
Then cycle will go from sin (π/4.5 t) = 0 to the position when sin (π/4.5 t) becomes negative that is when sin (π/4.5 t) < 0 or just after (π/4.5 t) is equal to π , so
sin (π/4.5 t) = sin (π) or (π/4.5 t) = π
solving for t t = π /π*4,5
t = 1/ 4,5
t = 0,22 sec
b) The maximum rate of air intake is when sin( π/4.5 t) takes its maximum value which is 1.
maxmum rate of air intake is: 0.85 lts/sec
c) Interval for inhalation [ 0 < ( π/4.5 t) ≤ π ]
Interval for exhalaton [ π < ( π/4.5 t ) ≤ 2π ]
Answer:
Yes, the table is proportional.
Step-by-step explanation:
To find out if a table is proportional or not see if they have the same constant of proportionality.
The formula for finding the constant of proportionality is <em>k </em>= <em>y/x.</em>
1/4 ÷ 1 = 1/4
1/2 ÷ 2 = 1/4
3/4 ÷ 3 = 1/4
1 ÷ 4 = 1/4
They all have the same constant of proportionality which means they are proportional.
