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2 years ago

Use substitution to solve the problem below algebraically. x = 41 x + 2y = 71

Mathematics

2 answers:

grandymaker [24]2 years ago

7 0

Answer:

41 + 2y = 71

2y = 30

y = 15

Step-by-step explanation:

i believe that is right, if not sorry

jonny [76]2 years ago

7 0

Step-by-step explanation:

41x+2y=71

2y=-41x+71

y=-20.5x+35.5

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Hitman42 [59]

Answer:

The angle of elevation of the sun from the ground to the top of a tree is $36^{\circ}$ .

Step-by-step explanation:

As given

The sun from the ground to the top of a tree when a tree that is 10 yards tall casts a shadow 14 yards long.

Now by using the trignometric identity .

$tan\theta =\frac{Perpendicular}{Base}$

As figure is given below .

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Putting all the values in the trignometric identity .

$tan\theta =\frac{AB}{BC}$

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$\theta =tan^{-1}(\frac{10}{14})$

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Therefore the angle of elevation of the sun from the ground to the top of a tree is $36^{\circ}$ .

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sladkih [1.3K]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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