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leonid [27]
2 years ago
7

Test Practice

Mathematics
2 answers:
Gekata [30.6K]2 years ago
6 0
7+7=14
5+5=10
9+8=17
10+10=20
9+9=18
grin007 [14]2 years ago
5 0
9+8=17
10+10=20
5+5=10
9+9=18
7+7=14
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The measure of central angle QRS is StartFraction 8 pi Over 9 EndFraction radians. What is the area of the shaded sector? 36Pi u
MArishka [77]

The question is missing the figure. So, it is attached below.

Answer:

Area of the shaded sector is <u>144π units squared</u>.

Step-by-step explanation:

Given:

Central angle of the sector is, \theta=\frac{8\pi}{9}\ rad

Radius of the circle is, R=18\ units

We know that, area of a sector of a circle of radius 'R' and central angle \theta is given as:

A=\frac{1}{2}R^2\theta

Plug in \theta=\frac{8\pi}{9},R=18. This gives,

A=\frac{1}{2}\times (18)^2\times \frac{8\pi}{9}\\\\A=(\frac{324\times 4}{9})\pi\\\\A=(36\times 4)\pi\\\\A=144\pi\ units^2

Therefore, the area of the shaded sector is 144π units squared.

5 0
4 years ago
Read 2 more answers
What is the answer for 5x-2x+8=2+6x+6?
Ede4ka [16]

5x - 2x + 8 = 2 + 6x + 6


Add like terms:

5x - 2x = 3x

2 + 6 = 8


3x + 8 = 6x + 8


To isolate the variable, subtract 6x from both sides of the equation:

3x - 6x = -3x


-3x + 8 = 8


Now subtract 8 from both sides:

8 - 8 = 0


-3x = 0


To finish, divide both sides by -3:

0 ÷ -3x = 0


The answer is x = 0


Hope this helps.

3 0
3 years ago
Read 2 more answers
Solve the equation: 13W - 2(4W + 1) = W - 58 *
Sergio [31]

Answer:

W = - 14

Step-by-step explanation:

13W - 2(4W + 1) = W - 58

13W - 8W - 2 = W - 58

13W - 8W - W = 2 - 58

4W = - 56

W = - 56 : 4

W = - 14

6 0
3 years ago
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Allie's mother is four times as old as Allie. In 16 years her mother will be twice her age. How old is Allie now?
Kay [80]
What do you mean? At first it was 4 times as old, then it's twice her age?
8 0
3 years ago
Need help so baddddd
stepan [7]
It would be 90%. 18 is 90% of 20
8 0
3 years ago
Read 2 more answers
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