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Trava [24]
3 years ago
11

Help asap

Mathematics
1 answer:
enot [183]3 years ago
4 0

Answer:

A = 94.985

Step-by-step explanation:

Formila for area of a circle is A = pi * radius²

Just plug in your numbers for: A = 3.14 * 5.5²

The radius is 5.5 because the diameter is 11

A = 94.985

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PLEASE HELP DUE SOON PLEASE !!
sukhopar [10]

Answer:

(1 + \sqrt{3} ) : 3

Step-by-step explanation:

AB = x\sqrt{3}  cm

BC = x cm

Area = l * b = x\sqrt{3} * x

= x^2 \sqrt{3}

EFG is equilateral triangle

EF = y cm

Area of triangle = (\sqrt{3} / 4) * a^{2}

A = (\sqrt{3} / 4) * y^{2}

As both areas are equal

\sqrt{3} x^{2}  = \sqrt{3} /4 * y^{2}

4x^{2}  = y^{2}

2x = y

perimeter of ABCD = 2 (l + b)

2 (x\sqrt{3}  + x)\\= 2x(\sqrt{3} + 1)

perimeter of EFG = 3y

so ratio is 2x(\sqrt{3} + 1) : 3y

substitute y = 2x

2x(\sqrt{3} + 1) : 3*2x\\(\sqrt{3}  + 1) : 3

(1 + \sqrt{3} ) : 3

4 0
3 years ago
Values of r and h, what do you notice about the proportions of the cylinders?
Tamiku [17]

Answer:

Below

Step-by-step explanation:

r us the radius of the base and h is the heigth of the cylinder.

The volume of a cylinder is given by the formula:

V = Pi*r^2*h

V/Pi*r^2 = h

We can write a function that relates h and r

8 0
4 years ago
Read 2 more answers
Hüseyin draws a fox with a scale of 3 units on his graph paper represents 15cm. The fox has an actual height of 80cm. What is th
Over [174]

Answer:

The height of the fox in Huseyin's drawing is, 16 units

Step-by-step explanation:

Proportion states that the two ratios or fractions are equal.

As per the statement: Huseyin draws a fox with a scale of 3 units on his graph paper represents 15 cm. The fox has an actual height of 80 cm.

⇒ We are given Scale of 3 units.

On graph paper the length of fox is 15 cm.

The fox has an actual height = 80 cm

let x be the height in units of the fox in Huseyin's drawing.

By definition of proportion;

\frac{3}{15} = \frac{x}{80}

by cross multiply we get;

3 \times 80 = 15x

Simplify:

240 = 15x

Divide both sides by 15 we get;

x = 16 units.

Therefore, the height of the fox in Huseyin's drawing is, 16 units


6 0
3 years ago
Read 2 more answers
What is the quotient in simplest form?<br> 12<br> 7<br> 7<br> O<br> 36<br> 3<br> O<br> 5<br> 5
Firdavs [7]
The answer is 4/7. Hope this helps
6 0
3 years ago
What is a perfect circle
Anon25 [30]

Answer:

A circle which has the exact same radius no matter what direction you measure in

Step-by-step explanation:

Probably

6 0
3 years ago
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