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diamong [38]
4 years ago
13

Value of x round to the nearest tenth

Mathematics
1 answer:
vladimir2022 [97]4 years ago
8 0
Gsjgwgetevveoehheuwbe
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Find the area of an isosceles trapezoid, if the lengths of its bases are 16 cm, and 30 cm, and the diagonals are perpendicular t
Klio2033 [76]
For this case we have:
 a = 30 cm
 c = 16 cm
 We look for the length of the diagonal:
 d = x + y
 Where,
 For x:
 a ^ 2 = x ^ 2 + x ^ 2
 x = a / root (2) = 30 / root (2) = 21.2132 cm
 For y:
 c ^ 2 = y ^ 2 + y ^ 2
 y = c / root (2) = 16 / root (2) = 11.3137 cm
 The diagonal is:
 d = x + y
 d = 21.2132 + 11.3137
 d = 32.5269 cm
 Then, the height is:
 h = h1 + h2
 For h1:
 h1 = root (x ^ 2 - (a / 2) ^ 2) = root ((21.2132) ^ 2 - (30/2) ^ 2)
 h1 = 15 cm
 For h2:
 h2 = root (y ^ 2 - (c / 2) ^ 2) = root ((11.3137) ^ 2 - (16/2) ^ 2)
 h2 = 8 cm
 Finally:
 h = h1 + h2
 h = 15 + 8
 h = 23 cm
 Then, the area is:
 A = (1/2) * (a + c) * (h)
 A = (1/2) * (30 + 16) * (23)
 A = 529 cm ^ 2
 Answer:
 
the area of an isosceles trapezoid is:
 
A = 529 cm ^ 2
4 0
3 years ago
Sarah bought three avocados for $2.40 Lisa but five avocados for $2.50 who had the better deal and how much
NARA [144]

Answer:Lisa because she has less money that she has to pay hope that helped

Step-by-step explanation:

7 0
3 years ago
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A square wrestling mat has a side length of (4x – 1) feet. Which expression represents the area of the mat?
pantera1 [17]

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S = (4x-1)²

Step-by-step explanation:

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If f(x) = 5x – 2,<br> find f(3)
saw5 [17]

Answer:

I think the answer is 13...

Step-by-step explanation:

f(3)=5*3-2

=13

7 0
3 years ago
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(8.3 x 104) * (4.12 x 10-7)<br> What is the answer
ANEK [815]

The answer is 35563.84x²-6042.4x

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