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devlian [24]
2 years ago
6

Find the value of x.

Mathematics
1 answer:
MrMuchimi2 years ago
8 0

Answer:120

Step-by-step explanation:

because the triangle is a right angel which is 30 multiplied by 40 is 120its like 3 by 4 12 just add a 0

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The surface area of this regular pyramid is 1040 cm2. The base is a regular pentagon with side b = 16 cm and slant height l =15
Valentin [98]

Answer:

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Step-by-step explanation:

The formula for finding the surface area of a regular pyramid is B + (1/2*P*l), with B being the area of the base, p being the perimeter of the base, and l being the slant of the pyramid.

The area of a pentagon can be solved using the formula 1/2*a*p, with a being the apothem and p being the perimeter of the pentagon.

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The apothem is 11 cm. Hope this helps!

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What is equivalent to the expression: (10g^3 - 8g^2 + 5g - 14) + (10g^2 + 12g)
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