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Effectus [21]
2 years ago
8

Hey can you please help me with this

Mathematics
1 answer:
Tasya [4]2 years ago
8 0

x=-11

Hope this helps :T

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Find the surface area. round to the nearest hundredth when necessary.
Dmitry_Shevchenko [17]

Answer:

The surface area of the cuboid is 648 m^2

Step-by-step explanation:

What we have here is cuboidal in outlook

By using the formula for the surface area of a cuboid, we can get the surface area of the shape

mathematically, we have the surface area of a cuboid as follows;

2(lb + lh + bh)

where l is the length, b is the breadth (width) and h is the height

We can have the length as 9 m, the width as 9 m and the height as 13.5 m

Substituting these values, we have the surface area of the cuboid as;

A = 2(9(9) + 9(13.5) + 9(13.5))

A = 2(81 + 243)

A= 2(324)

A = 648 m^2

8 0
3 years ago
A regular heptagon is shown below. What is the value of x?
Margaret [11]

Answer:

108+x=180

X=180-108

X=72

7 0
2 years ago
Can someone help me please
Tasya [4]

Answer:

  Square

Step-by-step explanation:

The length of AB is (a+b)-a = b. The length of BC is b-0 = b. So, adjacent sides are the same length. AB has a constant y-value, so is horizontal. BC has a constant x-value, so is vertical.

A figure with horizontal and vertical sides of the same length is a square.

7 0
3 years ago
Steve can run 1 2/9 miles in 10 minutes. How many miles can he run in 30 minutes?
mariarad [96]

Answer:

3 2/3

Step-by-step explanation:

remember to give me brainliest cause I helped you

 

4 0
3 years ago
0.8 times x is less than 0.6
suter [353]

False. Anything times 0.8 except 0, is 0.8 or more.

8 0
3 years ago
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