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weeeeeb [17]
3 years ago
12

In a village, the cases of a particular infectious disease have been exponentially decreasing at a rate of 80% per year since th

e people started receiving the vaccine. If there were 200 cases in the village to start with, predict the number of cases after 2 years.
Mathematics
1 answer:
adoni [48]3 years ago
4 0

Answer:

8

Step-by-step explanation:

Exponential decay is expressed by an equation of the form:

A = P(1 - r)^t

where P = initial value, r = annual rate of decay, t = time in years

A = 200(1 - 0.80)^2

A = 8

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The following is a linear programming formulation of a labor planning problem. There are four overlapping shifts, and management
dexar [7]

Answer:

d. 15

Step-by-step explanation:

Putting the values in the shift 2 function

X1 + X2 ≥ 15

where x1=  13, and x2=2

13+12≥ 15

15≥ 15

At least 15 workers must be assigned to the shift 2.

The LP model questions require that the constraints are satisfied.

The constraint for the shift 2 is that the  number of workers must be equal or greater than 15

This can be solved using other constraint functions e.g

Putting  X4= 0 in

X1 + X4 ≥ 12

gives

X1 ≥ 12

Now Putting the value X1 ≥ 12  in shift 2 constraint

X1 + X2 ≥ 15

12+ 2≥ 15

14 ≥ 15

this does not satisfy the condition so this is wrong.

Now from

X2 + X3 ≥ 16

Putting X3= 14

X2 + 14 ≥ 16

gives

X2  ≥ 2

Putting these in the shift 2

X1 + X2 ≥ 15

13+2 ≥ 15

15 ≥ 15

Which gives the same result as above.

6 0
3 years ago
What kind of triangle is this?
Agata [3.3K]
B. As all the sides are different lengths and angle f is bigger than 90 so it is obtuse
Hope this helps
7 0
3 years ago
Plz do all plz i will give brainlest and thanks to best answer
Talja [164]

Answer: 25.     -17, -14, -3, 0, 2, 7

26.                          -26, -21, -13, -1,  5

27.   -17, -16, -11, -4, 2, 9

28.    -75, -63, -60, -52, 12, 70

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Help me pleaseeeessss
wlad13 [49]

Answer:

28/53

Step-by-step explanation:

Hey There!

So they want us to find the sine of angle S

well remember is sohcahtoa

S - sine

O - opposite

H - hypotenuse

meaning that

Sin=\frac{opposite}{hypotenuse}

The opposite side of angle S is 28 and the hypotenuse is 53

so sinS=\frac{28}{53}

5 0
2 years ago
Super easy math help please
Bess [88]
If I was u I would use Photomath Bc it is super easy and answers almost all your answers

5 0
3 years ago
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