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4 years ago

Which point is located at (7,6)? a.B b.E c.O d.R

Mathematics

2 answers:

anyanavicka [17]4 years ago

8 0

The answer is a.B
go right 7 and up 6 gives you point b

lakkis [162]4 years ago

8 0

The answer is A. Point B
All you have to do is move right 7 and up 6.

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"Polio has a basic reproduction number (R0) = 5. The vaccine is very good; in fact, polio vaccine is 99% effective when two foll

yulyashka [42]

Answer:

0.81

Step-by-step explanation:

Herd immunity or community immunity is the immunity seen after vaccination of a population wherein the large portion of the population becomes immune to the pathogen. It depends on vaccine efficacy and vaccination rate.

The reproduction number R_o is a factor indicating the number of people that can be infected by the person with the disease. If Ro=5 then one infected person can infect 5 people with Polio virus.

V_c= q_c/E

V_c= Vaccine coverage

q_c= herd immunity threshold

E= Vaccine efficacy= 99%=0.99

$q_c=1-1/R_o= 1-1/5=0.8$

V_c= q_c/E

V_c= 0.8/0.99= 0.808= 0.81

Thus, 81% coverage or vaccination for Polio is required to stop spread of Polio in the population.

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3 years ago

Calculate the value of x^2 – 2x – 24 when x = -3.

aivan3 [116]

Answer:

- 9

Step-by-step explanation:

Substitute x = - 3 into the expression

(- 3)² - 2(- 3) - 24

= 9 + 6 - 24

= 15 - 24

= - 9

3 0

3 years ago

Each side length of the parallelogram at the right is multiplied by 4 describe the change into the perimeter.judtify your answer

Sloan [31]

Let's say we have a parallelogram that has sides of 2 and 3
perimeter = 2 * (side1 + side2)
perimeter = 2 * (2 + 3)
perimeter = 10

If the sides are increased by a factor 4, the sides are 8 and 12
perimeter = 2 * (side1 + side2)
perimeter = 2 * (8 + 12)
perimeter = 40

The perimeter increases by a factor 4.

5 0

3 years ago

How do you solve 5÷(4-3)×9-2

4vir4ik [10]

5÷(4-3)×9-2
= 5÷1×9-2
= 5 × 9 - 2
= 43

You must solve the bracket first.After that,solve the multiplication and division,followed by addition and substraction if any.That's the theory to solve the right step

3 0

3 years ago

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The linear equation shown below expresses the revenue of a café based on the number of children and adults who ate there last Tu

disa [49]

3 children also ate there.

Hope this helps!

8 0

4 years ago

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