All categories

3 years ago

In a circle, what does the ratio A/r^2 represent?

1 answer:

5 0

The ratio A/r² would represent $\pi$ which is the circumference of a circle divided by its diameter.

You can see this because the area of a circle is $\pi$ r² and if you divided that by the radius squared, you are given pi which is the circumference of a circle divided by its diameter.

You might be interested in

i need help writing each decimal in word and expanded form.1)0.65 2)12.31 3)692.14 4)81.51 5)914.011 6)3,521.71 7)0.56 8)

DIA [1.3K]

1)sixty-five hundredths
2)twelve and thirty-one hundredths
3)six hundred ninety-two and fourteen hundredths
4)eighty-one and fifty-one hundredths
5)nine hundred fourteen and eleven thousandths
6)three thousand, five hundred twenty-one and seventy-one hundredths
7) fifty-six hundredths
8)eight thousand, nine hundred forty-eight and three hundredths

8 0

3 years ago

A rain jacket that usually costs r dollars is available at a discount. Drag and drop two

Ket [755]

Answer: 0.81919191023020202020

Step-by-step explanation: ee

4 0

3 years ago

7➗1/5 As a fraction plz

marishachu [46]

$\bf 7\div \cfrac{1}{5}\implies \cfrac{7}{1}\div \cfrac{1}{5}\implies \cfrac{7}{1}\cdot \cfrac{5}{1}\implies \cfrac{35}{1}$

5 0

4 years ago

Read 2 more answers

how do I get every number from 1-20 using only four four's. Please this is due Monday. I'll make it worth more points too just..

Luba_88 [7]

Answer:

go 4+4+4+4+4 4x5 its a simple answer i took this 4 years ago

Step-by-step explanation:

4x5=20

3 0

4 years ago

A student walk 60m on a bearing

Katena32 [7]

Answer:

d = 234.6 m

Step-by-step explanation:

You can consider a system of coordinates with its origin at the beginning of the walk of the student.

When she start to walk, she is at (0,0)m. After her first walk, her coordinates are calculated by using the information about the incline and the distance that she traveled:

$x_1=60cos28\°=52.97m\\\\y_1=60sin28\°=28.16m$

she is at the coordinates (52.97 , 28.16)m.

Next, when she walks 180m to the east, her coordinates are:

(52.97+180 , 28.16)m = (232.97 , 28.16)m

To calculate the distance from the final point of the student to the starting point you use the Pythagoras generalization for the distance between two points:

$d=\sqrt{(x-x_o)^2+(y-y_o)^2}\\\\x=232.97\\\\x_o=0\\\\y=28.16\\\\y_o=0\\\\d=\sqrt{(232.97-0)^2+(28.16-0)^2}m=234.6m$

The displacement of the student on her complete trajectory was of 234.6m

8 0

3 years ago