243651a 243651a
  • 01-11-2019
  • Mathematics
contestada

A 7,5m ladder is placed with its lower end 2m away from the wall. How high up the wall does the ladder reach?

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 01-11-2019

Use the Pythagorean theorem:

Let x = the height.

2^2 + x^2 = 7.5^2

Simplify:

4 + x^2 = 56.25

Subtract 4 from both sides:

x^2 = 52.25

Take the square root of both sides:

x = 7.2284 m  Round the answer as needed.

Answer Link

Otras preguntas

A line passes through (1,1) , (-2,4) , and (6,n) . Find the value of n.
A 32 oz bottle of fruit juice costs $6.72. What is the cost of the juice per ounce? $
What is the sum of 3/2x and 7/4x
What did Stalin want for the future of Germany? (A) He wanted Germany to remain under the control of the Allies. (B) He wanted a stronger and united Germany. (C
what is value of digit 4 in 1.848 meters in decimal and fraction
F(x)=13x-14 Find the domain of f(x)
Why do the cells in all living things need energy? A. to fuel their chemical reactions B. to help them decompose C. to communicate with other cells D. so they c
x^2-9x+8 what is the Factor to this problem
Read the following sentences. Select the answer if the underlined term in a sentence is used correctly. Choose all answers that are correct. A. Julius Caesar wa
Solve each equation -8a - 1=-23