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timofeeve [1]
2 years ago
13

Find the area of a circular sector in cm² with angle 15° if the length of the intercepted arc is pi/2 cm

Mathematics
1 answer:
UkoKoshka [18]2 years ago
3 0

Answer:

0.52cm2

Step-by-step explanation:

l of Arc =tita/360×2πr

15/360×2×22/7×2

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X2+8x=-1 complete the square
Sophie [7]
(X+4)^2-15

This is the answer
6 0
3 years ago
-2 = g - 9 solve equation
jekas [21]

OK.  Hold on tight.  Here we go.
Remember ... the "solution" is the number that 'g' must be
in order to make the equation a true statement.

The original equation:   You said that  -2 = g - 9

Now, let's add  9  to each side:             7 = g .

8 0
3 years ago
Read 2 more answers
A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 2 tables is $18. The total cost to re
DerKrebs [107]
C= chair cost
t= table cost

Create two equations with the given information. Solve for one variable in equation one. Substitute that answer in equation two. Then you can solve for the needed information.
3c+2t=$18
5c+6t=$48

3c+2t=18
Subtract 2c from both sides
3c=18-2t
Divide both sides by 3
c=(18-2t)/3

Substitute the value for c in equation two:
5c+6t=$48
5((18-2t)/3)+6t=48
(90-10t)/3+6t=48
Multiply everything by 3 to eliminate fraction
(3)((90-10t)/3)+(3)(6t)=(3)(48)
90-10t+18t=144
90+8t=144
Subtract 90 from both sides
8t=54
Divide both sides by 8
t=$6.75 cost for table

Substitute the t value to solve for c:
3c+2t=18
3c+2(6.75)=18
3c+13.50=18
3c=4.50
c=$1.50 chair cost

Check:
5c+6t=$48
5(1.50)+6(6.75)=48
7.50+40.50=48
48=48

Hope this helps! :) If it does, please mark as brainliest.
7 0
3 years ago
!! PLEASE HELP!! WILL GIVE U BRAINLYEST!! Write an example of a real world situation using either the diameter of a circle, the
Alborosie

Answer:

Calculation of the distance of a wheel passed.

Step-by-step explanation:

8 0
3 years ago
In a circle with a radius of 27 2/5 in., an arc is intercepted by a central angle of 7π/4 radians.
VikaD [51]
Arc Length = radius * Angle in radians
Arc Length = 27.4 * <span> <span> <span> 5.4977871438 </span> </span> </span>
Arc Length = <span> <span> <span> 150.6393677396 </span> </span> </span> inches

Source:
http://www.1728.org/radians.htm



5 0
3 years ago
Read 2 more answers
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