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jeyben [28]
1 year ago
14

3x-5y= 4 -2x + 6у = 18

Mathematics
1 answer:
dezoksy [38]1 year ago
5 0
(57/4, 31/4)

This was using system of equations
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To calculate the cost of painting his silo, a farmer must find its height. The farmer uses a cardboard square to line up the top
tankabanditka [31]

Answer:

Height of the silo = 18 feet.

Step-by-step explanation:

From the figure attached BC is the length of the silo and the height of the farmer is 5 ft.

Farmer is standing at 8 ft distance from the silo.

From triangle AEC,

tan(∠CAE) = \frac{CE}{AE}

                 = \frac{5}{8}

m(∠CAE) = tan^{-1}(\frac{5}{8})

               = 32°

m∠BAE = 90° - 32° = 58°

From the triangle ABE,

tan58° = \frac{BE}{AE}

BE = 8tan58°

BE = 12.8 ft

Total height of the silo = BE + EC

                                         = 12.8 + 5

                                         = 17.8

                                         ≈ 18 ft          

Therefore, total height of the silo is 18 ft.

3 0
3 years ago
Please help mE! BRAINLIESTTTTT
Lubov Fominskaja [6]

Answer:

Try this formula: length x width x height then you will find the answe. Hope this helps!  

3 0
2 years ago
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Item 56
masha68 [24]

Answer:

a 25 questions, 4 points   b 19 questions

Step-by-step explanation:

a 96:100 = 24 : x

x = (100 x 24)/96 = 25 questions

100 : 25 = 4 points

b 76:100 = x : 25

x = (76 x 25)/100 = 19 questions

6 0
3 years ago
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What additional information is needed to prove the triangles are congruent by SAS ?
DENIUS [597]

Answer:

Answer choice B was correct

Step-by-step explanation:

Line segment EB is congruent to line segment CB. I took the test.

4 0
3 years ago
And Again|||||||||||||||||||||||||||||||||
bogdanovich [222]

Answer:

free points TYSM!

Step-by-step explanation:

4 0
3 years ago
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