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2 years ago

HELPPP pls quick thanks <3

Mathematics

1 answer:

Mrrafil [7]2 years ago

7 0

Answer: can you show the selections?

Step-by-step explanation:

You might be interested in

6= 1/2z<br> just saying 1/2 equals one half

Fynjy0 [20]

Answer:

z=12

Step-by-step explanation:

6*2=12

z=12

7 0

2 years ago

The population of a community is known to increase at a rate proportional to the number of people present at time t. If the popu

Lady bird [3.3K]

Answer:

$P(t) = P(0)e^{0.0693t}$

Step-by-step explanation:

The population of a community is known to increase at a rate proportional to the number of people present at time t.

This means that the population growth is modeled by the following differential equation:

$\frac{dP(t)}{dt} = rP(t)$

Which has the following solution:

$P(t) = P(0)e^{rt}$

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.

The population has doubled in 10 years

This means that $P(10) = 2P(0)$ . We use this to find r.

$P(t) = P(0)e^{rt}$

$2P(0) = P(0)e^{10r}$

$e^{10r} = 2$

$\ln{e^{10r}} = \ln{2}$

$10r = \ln{2}$

$r = \frac{\ln{2}}{10}$

$r = 0.0693$

So the equation that will estimate the population of the community in t years is:

$P(t) = P(0)e^{0.0693t}$

6 0

2 years ago

The sum of a number is<br> 4 less then 2 times a<br> number is 35 what is the number?

Artist 52 [7]

<h2>Answer:</h2>

<h2>Step-by-step explanation:</h2>

35 divided by 2 = 17.5
17.5 + 4 = 21.5
<u>Just do the inverse</u>

5 0

2 years ago

Jamal states that ax + b = a(x + c), given a, b, and c are not equal to 0. What must be the value of c for Jamal's statement to

Anna35 [415]

ANSWER

For Jamal statement to be true,

$c = \frac{b}{a}$

EXPLANATION

The given statement is:

ax + b = a(x + c)

We expand the left hand side to obtain,

ax + b = ax + ac

Subtract ax from from both sides of the equation.

b=ac

We know that, a≠0 , so we can divide through by 'a'.

$\frac{b}{a} = c$

6 0

3 years ago

An animal shelter spends three dollars per day to take care for each bird and seven dollars per day take care for each cat Alexa

NikAS [45]

Answer:

There were 16 birds at the shelter on Wednesday.

Step-by-step explanation:

Number of cats and birds on Wednesday = 34

let the number of birds on Wednesday = b

Then number of cats = (34 -b)

The rate of taking care of each bird in shelter = $3

The rate of taking care of each cat in shelter = $7

Total amount spent by shelter on Wednesday = $174

So, according to the question

b x ($3) + (34 -b) ($7) = $ 174

or, 3b + 238 - 7b = 174

or, 4b = 64

⇒ b = 64/4 = 16

Hence, the number of birds in shelter on Wednesday = b = 16

and Number of cats = 34 - 16 = 18

3 0

3 years ago