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abruzzese [7]
3 years ago
11

O is the center of the circle. calculate the values of x and justify your answer

Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0
The answer is 68 degrees because that angle is half of the 136 angle.
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In a school there are 542 girls and boys. how many pupils are there in that school?
DaniilM [7]

Answer:

There are 1084 pupils in that school.

Step-by-step explanation:

If there are 542 girls and boys then you would have to double 542 to get the total number of people. So, there are 1084 people in that school.

Hope this helps!

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Multiply each polynomial <br><br> (x + 5)(x+4)<br><br> teach me step by step
lara [203]

Answer: x^2 + 9x + 20

Step-by-step explanation:

Foil Method: (a + b) (c + d) = ac + ad + bc + bd

Lets say:

a = x

b = 5

c = x

d = 4

Plugging in the numbers: xx + 4x + 5x + 5*4

Combine like terms:

xx = x^2

4x + 5x = 9x

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You're then left with: x^2 + 9x + 20

6 0
3 years ago
Can someone pls help me find this is important
Olenka [21]

Answer:

x=90° and y=35°

Step-by-step explanation:

to get x and y first you must find the middle angles based on the information you have so:

35+90+n=180° solve for n to get what the middle angles are (since they are vertical angles they are equal) so the middle angles are both 55 degrees

and then 180-x=that angle that is also on the line with x so we'll call it k

so k+55+y=180°

we can see that y equals 35* because I noticed that those are parallel lines on the outside of the triangle so 35* and y angles are congruent and y =35°

now 35+55+k=180°

solve for the angle next to x which we called k and it is 90°

so x=90° and y=35°

after all this math I realized that if they are parallel lines then we can just use that to figure it out so use the properties to find out that x=90° and y=35°

7 0
3 years ago
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-12 divided by 3 x (-8 +(-4)^2 - 6) + 2
son4ous [18]

Answer:

this is the correct graph

8 0
2 years ago
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