FIRST ANSWER WILL BE BRAINLIEST!!! 2*6*7*6*9(8+6)1= ?

The breakdown of a sample of a chemical compound is represented by the function p(t) = 500 (0.25)^t, where p(t) represents the n

ludmilkaskok [199]

Given:

The function is:

$p(t)=500(0.25)^t$

Where p(t) represents the number of milligrams of the substance and t represents the time.

To find:

The correct explanation for the number 0.25 and 500 in the given function.

Solution:

The general exponential function is:

$y=ab^x$ ...(i)

Where, a is the initial value and b is the growth/decay factor. If $0$ , then decay factor and if $b>1$ , then growth factor.

We have,

$p(t)=500(0.25)^t$ ...(ii)

On comparing (i) and (ii), we get

$a=500$ , it means initial there are 500 milligrams of the substance.

$b=0.25$ , this value is less than 1, it means the substance is decreasing by a factor of 0.25.

Therefore, 0.25 means the substance is decreasing by a factor of 0.25 and 500 means the initial value of substance is 500 milligram.

3 0

4 years ago

A convenience store manager notices that sales of soft drinks are higher on hotter days, so he assembles the data in a table, sh

Contact [7]

The regression equation to predict the number of cans sold on a day that is 90°F will be 871.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

A convenience store manager notices that sales of soft drinks are higher on hotter days, so he assembles the data in the table, shown above. Use technology to find the equation of the least-squares regression line.

Then the regression line will be passing through (55, 340) and (84, 780). Then we have

y - 340 = 15.17(x - 55)

Then the regression equation to predict the number of cans sold on a day that is 90°F will be

y - 340 = 15.17 (90 - 55)

y = 871

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

3 0

3 years ago

You are deciding between two phone plans to purchase: Yap-Yap charges $11 for phone rental and 9 cents per minute. Holla charges

valentina_108 [34]

The correct answer is yap-yap

7 0

4 years ago

Simplify (2^3)^–2 ment to put this

aleksley [76]

Answer:

$\frac{1}{64}$

Step-by-step explanation:

$\left(2^3\right)^{-2}\\\\\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc},\:\quad \:a\ge 0\\\left(2^3\right)^{-2}=2^{3\left(-2\right)}\\\\3\left(-2\right)=-6\\=2^{-6}\\\\\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}\\2^{-6}=\frac{1}{2^6}\\\\2^6=64\\\\=\frac{1}{64}$

4 0

4 years ago

Read 2 more answers

Alan and his brother both want the last doughnut. Alan makes a bet with his brother to decide who should get the doughnut. Alan

tekilochka [14]

<h2>Answer:</h2>

<em><u>Bet should be placed on Black Cards.</u></em>

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

In the question,

We have total 52 cards with us in the deck.

<u>There are two cases of placing the bets,</u>

One, when the card picked is black.

Second, when the card picked is a face card and a value of 10.

So,

Number of Black cards in the deck = 26

Number of Face cards with the value of 10 are = 4 x 3 = 12

So,

The <u>probability of selecting a black card</u> is given by,

$Probability=\frac{26}{52}=\frac{1}{2}$

Also,

<u>Probability of selecting a face card of value 10</u> is given by,

$Probability=\frac{12}{52}=\frac{3}{13}$

Therefore, we can see the probability of picking a black card is more than the probability of selecting a face card of value 10.

<em><u>Therefore, if the bet is placed on black card then there is the best chance to win.</u></em>

6 0

4 years ago