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lozanna [386]
3 years ago
12

Help...........please​

Mathematics
1 answer:
melisa1 [442]3 years ago
3 0

Answer:

easy

Step-by-step explanation:

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Please Answer Attachment Below Thanks
docker41 [41]

Answer:

Step-by-step explanation:

The interior angles of a heptagon add up to 5*180 = 900

So

x + 143 + 116 + 135 + 135 + 116 + 155 = 900     Add up the known angles

x + 800 = 900                                                   Subtract 800 from both sides

x + 800 - 800 = 900 - 800                              Combine

x = 100

8 0
3 years ago
It's the day before Valentine's Day and Shelly needs to get Valentine cards for all of her classmates.The desks are arranged in
Vitek1552 [10]

Answer:

32

Step-by-step explanation:

No of desks along  length of the rectangle = 7 as it is 7 rows wide.

No of desks along  breadth of the rectangle = 7 as it is 5 rows long.

Total number of students is product of these two numbers.

So number of students = 35.

But three desks are empty.

Total students = 35- 3

                         = 32.

4 0
3 years ago
Find the area of the equilateral triangle
Kaylis [27]

Answer:

An equilateral triangle can be defined as a special type of triangle whose all the sides and internal angles are equal. In an equilateral triangle, the measure of internal angles is 60 degrees.

Step-by-step explanation:

4 0
3 years ago
2/3 of a pizza was left over. A group of friends divided the leftover pizza into pieces each equal to 1/18 of the original pizza
sasho [114]
There was 10 friends because there if you times 2/3 by 6 you get 12/18 and 10 people eat it then there is 3/18 left and after you simpfly it you get 1/6
4 0
3 years ago
Consider U = {x|x is a negative real number}.
gizmo_the_mogwai [7]

Answer:

{x\ x e U and x has a negative square root} is an empty set.

Step-by-step explanation:

If x e U, x is a negative real number, and they don't have a square root (they don't have even roots). Their square roots are complex numbers, not real ones.

6 0
3 years ago
Read 2 more answers
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