Answer:
Step-by-step explanation:
Given the following scores 3, 7 and 2, we are to find the expression Σ2X-2 and Σ(X-1)²
The value of X's are 3, 7 and 2. Substituting the values we will have;
Σ2X-2 = [2(3)+2(7)+2(2)] - 2
Σ2X-2 = (6+14+4) - 2
Σ2X-2 = 24-2
Σ2X-2 = 22
For Σ(X-1)²
Σ(X-1)² = (3-1)²+ (7-1)² + (2-1)²
Σ(X-1)² = 2²+6²+1²
Σ(X-1)² = 4+ 36+1
Σ(X-1)² = 41
Answer:
dA/dt = 12 - 0.03A.
Step-by-step explanation:
The rate at which the toxin is taken in or ingested throughout the day Increases by 12 micrograms a day.
The rate at which the toxin is taken out throughout the day decrease by 3 percent that is 0.03.
The differential equation for the amount of toxin, A, in micrograms, in the person's body as a function of the number of days, t = dA/dt.
The rate at which the toxin is taken in or ingested makes dA/dt more positive.
The rate at which the toxin is taken out throughout the day makes dA/dt more negative.
Therefore, dA/dt = (rate at which the toxin is taken in or ingested) - ( The rate at which the toxin is taken out throughout the day).
Hence, dA/dt = 12 - 0.03A
If you add the lengths of two sides, 12 and 14, you will get 28. the third side cannot be greater than or equal to 28. Therefore, the greatest possible whole-number length of the unknown side is 27.
