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3 years ago

If you know the perimeter of the square, you can find the area of the square in two steps. Describe the two steps.

Mathematics

2 answers:

Veronika [31]3 years ago

6 0

1) Take the perimeter and divide it by 4.
2) Take the answer from step 1 and square it (multiply by itself)

Natali [406]3 years ago

5 0

It's simple. If you know the perimeter of a square, just divide by 4 due to the 4 sides making the perimeter up. Now you have the length of just one side. Area = l*w or in this case s^2, so just multiply the side by itself and you have the area of a square!

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Jimmy made a scale drawing of his house. The actual dimensions of his house are 50 feet by 100 feet. He used the scale 1 inch :

sleet_krkn [62]

Step-by-step explanation:

10 feet = 1 inch

50 feet = 5 inches

Do the same thing for the length.

If you don't under stand.

50/10 = 5

1/10 = x/50

10x = 50

x = 50/10

x = 5 inches

Then you do the same with the lenght.

7 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

Find the unit rate and slope of the graph (ignore what I put down)

Vilka [71]

Answer:

slope: 5/7

0.714 mile per hour

Step-by-step explanation:

slope: find the point where the line is right on the line graph, put y/x which is 10/14 make the fraction smaller which is 10/14 = 5/7(I divide the denominator and nominator by 2)

Mile per hour: 5/7 cross multiply with x/1, make into an equation:

7x=5 x 1

7x = 5

x = 0.714

7 0

2 years ago

The function f(x)=(x-5)^2 +2 is not one-to-one. Identify a restricted domain that makes the function one-to-one, and find the in

Anon25 [30]

We have been given a quadratic function $f(x)=(x-5)^{2} +2$ and we need to restrict the domain such that it becomes a one to one function.

We know that vertex of this quadratic function occurs at (5,2).

Further, we know that range of this function is $[2,\infty)$ .

If we restrict the domain of this function to either $(-\infty,5]$ or $[5,\infty)$ , it will become one to one function.

Let us know find its inverse.

$y=(x-5)^{2}+2$

Upon interchanging x and y, we get:

$x=(y-5)^{2}+2$

Let us now solve this function for y.

$(y-5)^{2}=x-2\\
y-5=\pm \sqrt{x-2}\\
y=5\pm \sqrt{x-2}\\$

Hence, the inverse function would be $f^{-1}(x)=5+\sqrt{x-2}$ if we restrict the domain of original function to $[5,\infty)$ and the inverse function would be $f^{-1}(x)=5-\sqrt{x-2}$ if we restrict the domain to $(-\infty,5]$ .

8 0

3 years ago

You are facing West. Turn 90 degrees left. Turn 180 degrees

makkiz [27]

You would be facing Northeast.

6 0

3 years ago