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Ksenya-84 [330]
1 year ago
9

The diagram shows a logo made from 3 circles. Each circle has a centre 0. daisy says exactly 1/3 of the circle is shaded. is dai

sy correct?
I NEED AN ANSWER QUICK!!!!

Mathematics
1 answer:
marusya05 [52]1 year ago
3 0

Daisy is not correct. The shaded part is 3/50 that of the whole circle.

<h3>Is Daisy correct?</h3>

In order to determine if Daisy is correct, the area of the circle and the area of the shaded part has to be determined.

Area of the circle = = πr²

Where :

π = pi = 22/7

r = radius = 4 + 3 + 3 = 10

10²π = 100π

Area of the shaded part = 3²π = 9π

Ratio of the areas = 9π / 100π

To learn more about the area of a circle, please check: brainly.com/question/14351152

#SPJ1

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A circular plate has a circumference of 119.32cm. Calculate the diameter.
bekas [8.4K]

Answer:

Diameter is equal to 38 cm.

Step-by-step explanation:

We know that the circumference equals  πd (where d is the diameter).

If we round the value of π to 3.14 then we will get...

πd = 119.32

(3.14)d = 119.32

d = 119.32 / 3.14

d = 38 cm

Therefore the diameter is equal to 38 cm

3 0
3 years ago
At 1:00, the minute and hour hands form a 30º angle. What is the measure of the angle at 8:00, in degrees?
Anvisha [2.4K]
The angle would be obtuse. So it would be over a 90* angle.
•1= 30*
•2= 60*
•3=90*
•4=120*
•5=150*
•6=180*
•7=210
•8=230*
3 0
3 years ago
Find the value of x <br> A.)20<br> B.)55<br> C.)70<br> D.)38
Alex Ar [27]

Answer:

A.) 20

Step-by-step explanation:

These angles are complementary meaning they add up to 90°.

4x - 10 + x = 90

5x - 10 = 90

5x = 100

x = 20

4 0
2 years ago
Read 2 more answers
Which of the following sets of values correctly completes the t-chart for the equation y = 2x2 - 1.
natali 33 [55]

Answer:

The sets of values that correctly completes the t-chart are:

7, -1, 7

Hence, option B is true.

Step-by-step explanation:

Given the equation

y = 2x² - 1

FOR x = -2

substitute x = -2 in the equation

y = 2x² - 1

y = 2(-2)² - 1

y = 8 - 1

y = 7

FOR x = 0

substitute x = 0 in the equation

y = 2x² - 1

y = 2(0)² - 1

y = -1

FOR x = 2

substitute x = 2 in the equation

y = 2x² - 1

y = 2(2)² - 1

y = 8 - 1

y = 7

Thus, the t-chart becomes:

x              y

-2            7

0             -1

2              7

Thus, the sets of values that correctly completes the t-chart are:

7, -1, 7

Hence, option B is true.

7 0
3 years ago
0.005680 is how much greater than 0.0004359
Korvikt [17]

Answer: 0.0052441

Step-by-step explanation:

To see how much greater it is you have to subtract the two numbers. 0.005680-0.0004359=0.0052441  it is 0.0052441 greater

3 0
3 years ago
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