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stiks02 [169]
3 years ago
8

Find the area to this shape

Mathematics
1 answer:
professor190 [17]3 years ago
8 0

Answer:

A= 42.5

Step-by-step explanation:

2*5= 10

10/2=5

2*2= 4

4/2=2

5+2+4=11

3.5*9=  31.5

31.5+11=42.5

Sorry if this is wrong if it is wrong please let me know I think I know what I did wrong if it is wrong

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Chords and arcs. Can someone please help me with this and explain???20 points
anyanavicka [17]

Answer:

89

Step-by-step explanation:

So the line segment CD is 12.7 and half that is 6.35.  I wanted this 6.35 so I can look at the right triangle there and find the angle there near the center.  This will only be half the answer.  So I will need to double that to find the measure of arc CD.  

Anyways looking at angle near center in the right triangle we have the opposite measurement, 6.35, given and the hypotenuse measurement, 9.06, given. So we will use sine.

sin(u)=6.35/9.06

u=arcsin(6.35/9.06)

u=44.5 degrees

u represented the angle inside that right triangle near the center.  

So to get angle COD we have to double that which is 89 degrees.  

So the arc measure of CD is 89.  

5 0
3 years ago
Simplify the following expression 2[(7-3)^4 divided by 8] SHOW YOUR WORK! <br> someone pls help
kirill115 [55]

Answer:

64

Step-by-step explanation:

2(7-3)^4 divided by 8

2(4)^4 divided by 8

2(256) divided by 8

512 divided by 8

64

4 0
3 years ago
Read 2 more answers
An office manager needs to decide between two tables for the conference room. One is rectangular, 5 feet wide by 10 feet long. T
7nadin3 [17]

Answer:

The rectangular 5 x 10 table.

Step-by-step explanation:

To find which table the office manager needs to get so he can sit more people at it is decided by one factor, the perimeter. The rectangular one, which is 5 x 10 the perimeter is (5 x 2) + (10 x 2) = 10 + 20 = 30. The circular one can be calculated by the equation\pi * d where d = 8. Putting /pi x 8 in my calculator and it comes out approximately at 25.132, having a less amount of perimeter space to work with, making the rectangular table the way to go.

6 0
3 years ago
Write the equation of a circle with a center at (12, 6) and a radius of 6.
uranmaximum [27]

Answer:

(x-12)² + (y-6)² = 36 (Option C)

Step-by-step explanation:

use circle formula

(x-h)² + (y-k)²= r²

h= 12 and k= 6 and r= 6

(x-12)² + (y-6)² = 6²

6 squared = 36 (6·6)

(x-12)² + (y-6)² = 36

3 0
3 years ago
The volume of a gas is 10.0 liters and its pressure is 1.5 atm. If the pressure is decreased to 0.75 atm,
JulsSmile [24]

Answer:

The new volume is 20litres

Step-by-step explanation:

This problem bothers on the expansion of gases

According to Boyle's law

The volume of a given mass of gas at constant temperature is inversely proportional to the pressure

P∝1/v

Pv= constant

Given data

P1= 1.5atm

v1 = 10 litter

P2=0.75atm

v2=?

Applying P1v1= P2v2

v2= P1v1/P2

v2= 1.5*10/0.75

v2= 15/0.75

v2= 20litres

3 0
3 years ago
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