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3 years ago

What are the steps to solve -8(p+2)+p=4(p+3)+5

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

3 0

Answer:

p = -3

Step-by-step explanation:

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Una poblacion es atacada por una epidemia de gripe sea N(t)= numero de personas enfermas al tiempo t. En dias la epidemia inicio

Lisa [10]

Answer:

Habrán 10175 enfermos a los 15 dias.

Step-by-step explanation:

La tasa de cambio de la población enferma por la epidemia de gripe es:

$N'(t)=120t-3t^2$

Donde t es el tiempo en dias, y se sabe que la epidemia inició en N(0)=50.

Para encontrar la función original que describe el comportamiento de la epidemia, debemos integrar la función:

$N(t)=\int N'(t)dt$

$N(t)=\int (120t-3t^2)dt$

Integrando:

$\displaystyle N(t)=120\frac{t^2}{2}-3\frac{t^3}{3}+C$

Simplificando:

$\displaystyle N(t)=60t^2-t^3+C$

Para determinar el valor de C, usamos la condición inicial N(0)=50:

$\displaystyle 50=60(0)^2-(0)^3+C$

Se tiene que C=50, y la función queda determinada como:

$\displaystyle N(t)=60t^2-t^3+50$

b) El número de enfermos a los t=15 dias se determina substituyendo el valor en la función original:

$\displaystyle N(15)=60(15)^2-(15)^3+50$

Calculando:

$N(15)=13500-3375+50=10175$

Habrán 10175 enfermos a los 15 dias.

8 0

3 years ago

James average was a 73 first semester and 88 second semester. find the percent change.

Jobisdone [24]

Answer:

20.54%

Step-by-step explanation:

the first thing to know the percentage change, is to notice if the average increased or decreased, if it was initially 73 and then 88, we can say that increase, therefore the change is positive, now to calculate the exact change we must calculate the quotient of these numbers:

88/73 = 1.2054

which means that 0.2054 is the proportion of increase, to pass it to a percentage we must multiply by 100, that is:

0.2054 * 100 = 20.54%

which means that the percentage change was 20.54%

8 0

4 years ago

Read 2 more answers

20 POINTS ANSWER PLEASE LIKE NOWWW

spayn [35]

I don't see the options
5.708×10^−8

What is the number in standard form?

5.708×10^−8 = 0.00000005708

hope it helps

5 0

3 years ago