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Harman [31]
3 years ago
6

OAB is a sector of a circle of radius 12 cm Angle AOB= 60º Work out the length of the arc B. Give your answer in terms of pie.

Mathematics
1 answer:
Debora [2.8K]3 years ago
3 0

Answer:

Since 60° is one sixth of the entire circle (360°) it means that the length of arc B is 1/6 th of the circumference.

1/6 * (12 * 2π) = 4π

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The area covered by a topic lie plant triples every year. By what factors does the are covered by the plant increase every month
Marina CMI [18]

Answer:

16.67%

Step-by-step explanation:

If area triples every year :

This means that :

With an initial area of 10;

Area at the end of the year = 3 * 10 = 30

Percentage increase per year :

(30 - 10) / 10 * 100%

(20 / 10) * 100%

2 * 100%

= 200% per year

Therefore, monthly increase %

Yearly % increase ÷ number of months in a year

200% ÷ 12

= 16.666666%

= 16.67%

6 0
3 years ago
The mean absolute deviation is a measure of . This value represents the average distance each value is from the .
Oksanka [162]

Answer:

Step-by-step explanation:

Yes

7 0
3 years ago
I need help can anyone please help
ahrayia [7]

Answer:

vertically opposite angle

Step-by-step explanation:

4 0
3 years ago
Which expresion is equivalent to -5 -(-7)?<br> HURRY 20 POINTS
grigory [225]

Answer:

<h2>2 (the answer should have a positive sign.)</h2><h2>The equivalent to -5-(-7) is -5+7.</h2>

Step-by-step explanation:

To solve this problem, use the order of operations.

PEMDAS

Parentheses

Exponents

Multiply

Divide

Add

Subtract

\sf{-5-(-7)=-5+7}

\sf{-5+7}

Add or subtract.

Solve.

-5+7=2

\large\boxed{2}

So, the correct answer is 2.

3 0
3 years ago
can someone help me to solve the first problem only please I will mark you the brainly helpful answers pls!
swat32

Answer:

When 2 lines are parallel, the sum of interior corresponding angles = 180

120 + b = 180

b = 180 - 120 = 60

a + 30 = 180

a = 180 - 30 = 150

3 0
3 years ago
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