4 years ago

Thirteen points if answered!

Mathematics

2 answers:

marysya [2.9K]4 years ago

8 0

Answer:

Step-by-step explanation:

The answer is B. Plan B's balance will be greater :)

iren2701 [21]4 years ago

6 0

Yeah I agree I did the math and got B as the answer

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Select the expression that is equivalent to (x + 4)2.

Mrrafil [7]

you answer will be A

5 0

3 years ago

From where Kiana is standing, she must look up at a 50° angle to see the top of a building. If she backs up 50 feet, she will ne

Morgarella [4.7K]

For this case, what we must do is solve the following system of equations:
tan (50) = h / x
tan (40) = h / (x + 50)
Solving the system we have:
(x + 50) * tan (40) = h
(x) * tan (50) = h
Matching:
(x + 50) * tan (40) = (x) * tan (50)
Rewriting:
x (tan (50) - tan (40)) = 50 * tan (40)
x = 50 * tan (40) / (tan (50) - tan (40))
x = 118.9692621
Substituting:
h = (x) * tan (50)
h = (118.9692621) * tan (50)
h = 141.7820455
Answer:
The height of the building is:
h = 141.7820455 ft

5 0

3 years ago

Read 2 more answers

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Andrej [43]

Answer:

1) Triangles $PQR$ ≈ $STU$