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3 years ago

Find the area of the circle with a circumference of 30 radius . Write your solution in terms of radius

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

7 0

Answer:

2826

Step-by-step explanation:

30×30×3.14= 900×3.14= 2826

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The triangles are similar

hoa [83]

Answer:

Part 1) $x=16\ units$

Part 2) $x=23\ units$

Part 3) $AE=20\ units$

Part 4) $x= 6.25\ units$

Part 5) $x=26.67\ in$

Step-by-step explanation:

Part 1) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

In this problem

$\frac{12}{3}=\frac{x}{4}\\\\3x=12*4\\ \\x=48/3\\ \\x=16\ units$

Part 2) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

In this problem

$\frac{36}{12}=\frac{39}{(x-10)}\\\\3(x-10)=39\\ \\x=(39/3)+10\\ \\x=23\ units$

Part 3) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

In this problem

$\frac{AB}{CD}=\frac{AE}{ED}$

substitute the values

$\frac{10}{4}=\frac{2x+10}{x+3}$

$2.5(x+3)=2x+10$

$2.5x+7.5=2x+10$

$2.5x-2x=10-7.5$

$0.5x=2.5$

$x=5\ units$

$AE=2x+10=2*5+10=20\ units$

Part 4) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

In this problem

$\frac{4}{5}=\frac{5}{x}\\ \\4x=5*5\\ \\ x=25/4\\ \\ x= 6.25\ units$

Part 5) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

In this problem

$\frac{30}{x}=\frac{45}{40}\\ \\45x=30*40\\ \\x=1,200/45\\ \\ x=26.67\ in$

3 0

3 years ago

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The area of a square is 50 meters. how long is each side? round your answer to the nearest meter.

DanielleElmas [232]

The closest would be 7
7x7 is 49 and that is the closest

8 0

3 years ago

Read 2 more answers

Can anybody help me solve this? You must solve for X first.

gogolik [260]

Answer:

45 degrees

Step-by-step explanation:

angle QRS is same as (2x + 3) because it is an isosceles triangle

so, 90 + (2x+3) + (2x+3) =180 degrees

2x+3 +2x+3=180-90

2x+2x +3+3=90

4x+6=90

4x=90-6

4x=84

x=84/4

x=21

substitute x=21 in (2x+3)

2*21+3=45

6 0

3 years ago

Helpppppp Asapppp guys

alukav5142 [94]

Answer:

$-20\frac{3}{4}$ < $-15\frac{1}{2}$ < $-14\frac{3}{4}$ < $-\frac{1}{4}$

Step-by-step explanation:

Just so you know, the larger a negative number is, the smaller the number's value is.

3 0

3 years ago

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Refer to figure to complete this proportion r/h=?/s

Taya2010 [7]

$\frac{r}{h} = \frac{h}{s}$

8 0

4 years ago

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