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3 years ago

Please help I will give you brainliest!!!!

Mathematics

1 answer:

VikaD [51]3 years ago

8 0

Answer:

63.25sqft

Step-by-step explanation:

semi circle:

a= $\pi$ r^2

a= $\pi$ (5)^2 (radius is 5 bc diameter is 10 so you divide it by 2)

a=25 $\pi$

a=78.5/2=39.25 (divide by 2 bc its a semi circle)

triangle:

a=1/2bh

a=1/2(6x8)

a=1/2(48)

a=24

area:

39.25+24=63.25

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What is the slope of the line through (-2,3) and (1,1)?

son4ous [18]

The slope of the line is -2/3.

This is found by using the equation y2 - y1/x2 - x1. Filling in for each factor, you would have 1-3/1+2 (since subtracting a negative makes it positive). This will give you a final answer of -2/3.

Here is a graph of the full equation of the line.

I hope this helps!

6 0

3 years ago

The university police department must write, on average, five tickets per day to keep department revenues at budgeted levels. Su

katrin [286]

Answer:

3.566%

Step-by-step explanation:

The probability formula for a poisson distribution is:

$P( k )=\frac{\lambda^{k}e^{-\lambda}}{k!} \\$

λ is the average of events

e is the euler's number

k is the number of events you want to know the probability

For this :

λ = 8.9 (on average the number of tickets is 8.9 per day)

k = 4 (you need to find the probability that exactly 4 tickets are written per day)

$P( k=4 )=\frac{8.9^{4}e^{-8.9}}{4!}=0,03566 =3.566\%$

6 0

3 years ago

I need a little more help. Sorry for the spam questions.

Liula [17]

Perimeter is 28 and area is 32

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2 years ago

Multiply 5 4/7 x -2 2/5

Lunna [17]

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2 years ago

Write an equation for an exponential growth function where the initial population is 74 and the population quadruples during eac

Liono4ka [1.6K]

If the population quadruples every period say hour, that means the "rate of growth" is 300%, so whatever the current amount, increased by 3 times as much is 4 times the current amount, or a quadrupled amount.

$\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\to &74\\
r=rate\to 300\%\to \frac{300}{100}\to &3.00\\
t=\textit{elapsed time}\\
\end{cases}
\\\\\\
A=74(1+3)^t\implies A=74(4)^t$

6 0

3 years ago