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valentinak56 [21]
3 years ago
10

If you place a 39-foot ladder against the top of a 23-foot building, how many feet will

Mathematics
2 answers:
Alborosie3 years ago
4 0

Answer:

31.5 ft

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

Plug in the knowns

a² + 23² = 39²

Subtract 23² from both sides

a² = 39² - 23²

a² = 1521 - 529

a² = 992

Take the square root of both sides

a = 31.496031496

Rounded

a = 31.5 ft

Hoochie [10]3 years ago
3 0

Answer:

22.2

Step-by-step explanation:

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Which of the following differential equations has the slope field below
Nookie1986 [14]

The differential equation that has the given slope is: dy/dx = -xy.

<h3>How to find the differential equation that models the situation?</h3>

We have to look at the slope, given in the graph of the solution of the differential equation, and represented by dy/dx. From the graph, we have that:

  • In quadrants I and III, in which x and y have the same signal, the differential equation is decreasing, hence the slope is negative.
  • In quadrants II and IV, in which x and y have different signals the differential equation is increasing, hence the slope is positive.

The differential equation that is negative when x and y have the same signals and positive when they do not have is given by the following option:

dy/dx = -xy.

More can be learned about differential equations at brainly.com/question/14423176

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6 0
2 years ago
PLEASE HELP ME!
andreyandreev [35.5K]

Answer:

12

Step-by-step explanation:

3+5=8

32÷8=4

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