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3 years ago

Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .

Mathematics

2 answers:

lions [1.4K]3 years ago

6 0

Formula for the area of a quarter circle: A = (pi x r^2) / 4

A = (3.14 x 36) / 4

A = 113.04 / 4

A = 28.26 square feet

Hope this helps! :)

Kryger [21]3 years ago

6 0

Answer:

9π

Step-by-step explanation:

Well the area of a circle is π(r)^2 and plugging in 6 as r would be π6^2, which equals 36π. 36π/4 is equal to 9π, which is a quarter of the total area, or 36π. (nvm I thought it was a whole circle)

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Katya made another set of dolls. In the new set, the largest doll has a diameter of 8.75 cm and a height of 15.6 cm. Is this a d

Natali5045456 [20]

Complete Question:

Katya creates handmade sets of dolls, which is sold to craft and souvenir stores. The first set of dolls has a middle diameter of 7cm and a height of 12cm.

Katya made another set of dolls. In the new set, the largest doll has a diameter of 8.75 cm and a height of 15.6 cm. Is this a dilation of the first set of dolls?

Answer:

The new set is not a dilation of the first set

Step-by-step explanation:

Given

First Set:

$Height = 12cm$

$Diameter = 7cm$

New Set:

$Height = 15.6cm$

$Diameter = 8.75cm$

Required

Determine if the new set is a dilation of the second

To do this, we pass through the following steps:

1. Divide the height of the first set by the new set

2. Divide the diameter of the first set by the new set

3. Result in (1) and (2) must be equal if the new set is a dilation of the first set

Following the steps above:

(1)

$Height\ Ratio = \frac{H_2}{H_1}$

$Height\ Ratio = \frac{15.6}{12}$

$Height\ Ratio = 1.3$

(2)

$Diameter\ Ratio = \frac{D_2}{D_1}$

$Diameter\ Ratio = \frac{8.75}{7}$

$Diameter\ Ratio = 1.25$

(3) Make comparison

The ratio in (1) does not equal the ratio in (2)

i.e.

$1.3 \neq 1.25$

Hence, the new set is not a dilation of the first set

7 0

3 years ago

Add 3/7 + 8/9 . Simplify the answer and write as a mixed number

Fudgin [204]

You will get both of the fractions over the same denominator, so it will be 27/63 and 56/63, then you will add the two numerators, so it will then come out to 83/63, and you will then simplify that by subtracting 63 from 83, and will get 1 20/63

5 0

3 years ago

Find the measure of AEC and BED

Kazeer [188]

Answer:

30°

Step-by-step explanation:

well AEB is a straight line which is 180° and we were already given the angles that made up the straight line ,so all u had to do was subtract 60° from 90°

BED =30°

3 0

3 years ago

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Alchen [17]

Answer:

x= 0,1

y=-2,0

Step-by-step explanation:

8 0

3 years ago