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USPshnik [31]
2 years ago
7

Find the circumference of a circle with diameter, d = 9.06m. Give your answer rounded to 2 DP

Mathematics
1 answer:
Olin [163]2 years ago
5 0
C= 3.14d
C= 3.14 x 9.06
C= 28.45
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50 points!!! ANSWER ASAP WHAT GOES IN THE BOX?
julsineya [31]

Answer:

2⁹

Step-by-step explanation:

Using the rule of Indices:

aⁿ x aˣ = aⁿ⁺ˣ

Hence: 2²⁺³⁺⁴

= 2⁹

4 0
3 years ago
Read 2 more answers
Of the students attending a school party, 60% of the students are girls, and 40% of the students like to dance. After these stud
elena-s [515]

Answer:

252 students at the party like to dance

Step-by-step explanation:

Given:

60% of the students are girls

40% of the students like to dance

20 more boy students

Percentage of the girls in the party = 58%

To Find:

How many students now at the party like to dance=?

Solution:

Let the number of girls be g.

Let the number of total people originally be t.

We know that

\frac{g}{t}=\frac{60}{100}

\frac{g}{t}=\frac{3}{5}----------------------------------(1)

We also know that

\frac{g}{t+20}=\frac{58}{100}

\frac{g}{t+20}=\frac{29}{50}-----------------------------(2)

We now have a system of equation from (1) and (2)

3t=5g

g = \frac{3t}{5} ------------------------(3)

50g=29t+580------------------------(4)

Substituting 3 in 4, we get

50(\frac{3t}{5})=29t+580

(\frac{150t}{5})=29t+580

30t =29t+580

30t -29t = 580

t =589

So originally there was 580 students

In this 580 students 40% liked to dance

Then the number of students liked to dance =

=> 40\% \text{of} 580

=>\frac{40}{100} \times 580

=>0.4 \times 580

=> 232

We also know that with these people, 20 boys joined, all of whom like to dance.

Now the number of students like to dance  = 232+20 = 252 students

7 0
3 years ago
Please help me with this ​
prisoha [69]

Angle AOB + angle BOC = angle AOC

7x + 30 + 9x + 42 = 104

16x = 104 - 72

16x = 32

x = 2 degrees

Angle BOC = 9x + 42 = 18 + 42 = 60 degrees

3 0
3 years ago
I need help please <br> (Geometry)
oee [108]

The surface area formula for any sphere is 4(pi)(radius)^2

The radius is half of the diameter.

18.6 / 2 = 9.3

So, plug into the formula and solve.

4(3.14)(9.3)^2 = 1086.3 mm^2

4 0
3 years ago
A tortoise is walking in the desert. It walks at a speed of
NARA [144]
Hope this helps you!

7 0
3 years ago
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