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2 years ago

The diameter of a circle is 10 cm. Find its area in terms of π.

Mathematics

2 answers:

katovenus [111]2 years ago

8 0

Answer:

A = 25 $\pi$ $cm^{2}$ or A = 78.54 $cm^{2}$

Step-by-step explanation:

The diameter of a circle is just the radius two times, in this case, the diameter is 10. This means that the radius would be 5. Therefore we can use 5 as our r variable in the formula for area (A= $\pi r^{2}$ ),

A = $\pi 5^{2}$ , simplify $5^{2}$ :

A = 25 $\pi$

From here you can leave the asnwer in its excat form, 25 $\pi$ , or you can simplify it by multiply 25 times pi to get 78.54 (rounded to the hundreths place).

lutik1710 [3]2 years ago

3 0

Answer:

7.9577cm^2

Step-by-step explanation:

10 = 2 * r * pi

==> r = 5/pi

area = r * r * pi = 25/pi = 7.9577cm^2

Read more on matrix;

brainly.com/question/1821869

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4 0

2 years ago

The state of New Jersey makes approximately $1.55 billion annually from tolls of the $1.55 billion about 3/4 comes from tolls on

Rama09 [41]

Percent of turn pike is 75% and percent of parkway is 25%.

Solution:

Given, The state of New Jersey makes approximately $1.55 billion annually from tolls of the $1.55 billion

About $\frac{3}{4}$ comes from tolls on the turnpike

Remaining $\frac{1}{4}$ comes from tolls on the parkway

To find the percent of the total revenue from turnpike:

$\begin{array}{l}{\text { Percent of turnpike }=\frac{\text { amount from parkway }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{3}{4} \text { of total revenue }}{\text { tot al revenue }} \times 100} \\\\ {=\frac{\frac{3}{4} \times \text { total revenue }}{\text { total revenue }} \times 100} \\\\ {=\frac{3}{4} \times 100=3 \times 25=75 \%}\end{array}$

To find the percent of the total revenue from parkway:

$\begin{array}{l}{\text { Percent of parkway }=\frac{\text { amount from parkway }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{1}{4} \text { of total revenue }}{\text { total revenue }} \times 100} \\\\ {=\frac{\frac{1}{4} \times \text { total revenue}}{\text { total revenue }} \times 100} \\\\ {=\frac{1}{4} \times 100=25 \%}\end{array}$

Summarizing the results:

Percent of turn pike is 75%

Percent of parkway is 25%

3 0

3 years ago

PLEASE HELP

Lera25 [3.4K]

Answer:

To construct the Square using a compass and straight edge, you have written the steps not in proper order. I am rearranging the steps for you

1. Construct horizontal H J¯¯¯¯¯

2. Construct a circle with point H as the center and a circle with point J as a center with each circle having radius HJ .

3.Label the point of intersection of the two circles above HJ¯¯¯¯¯ , point K, and the point of intersection of the two circles below HJ¯¯¯¯¯ , point L.

4.Construct KL¯¯¯¯¯ , the perpendicular bisector of HJ¯¯¯¯¯ , intersecting HJ¯¯¯¯¯ at point M.

5.Construct a circle with point M as the center with radius MJ .

6.Label the point of intersection of circle M and KL¯¯¯¯¯ closest to point K, point N, and the point of intersection of circle M and KL¯¯¯¯¯ closest to point L, point O.

7.Construct HN¯¯¯¯¯¯ , NJ¯¯¯¯¯ , JO¯¯¯¯¯ , and OH¯¯¯¯¯¯ to complete square HNJO .

3 0

3 years ago

An employee at an organic food store is assembling gift baskets for a display. Using wicker baskets, the employee assembled 2 sm

Bingel [31]

$Let \: x, y \: (x,y>0) \: be \: the \: number \: of \: fruits \: the \: small \: and \: large \: baskets \: hold \: respectively \\ We \: have \: a \: system \: of \: equations:2x + 4y = 60 \: \wedge \: 2x + 10y = 132 \\ \Leftrightarrow x = 6 \: \wedge \: y = 12 \\ \Rightarrow The \: small \: baskets \: each \: include \: 6 \: fruits \\ \Rightarrow The \: large \: baskets \: each \: include \: 12 \: fruits$

5 0

3 years ago

25 times 55 wright it out please

lakkis [162]

Answer:

1375

Step-by-step explanation:

25*55= 1375

6 0

3 years ago