Here in this problem ladder forms a right triangle with the wall of the house and it is acts as hypotenuse, length of one leg of right triangle given to be 4 feet.

Let the ladder reaches x ft height of the house.

Hence, by Pythagoras theorem:

${12}^{2} = {4}^{2} + {x}^{2} \\ 144 = 16 + {x}^{2} \\ {x}^{2} = 144 - 16 \\ {x}^{2} = 128 \\ x = \sqrt{128} \\ x = 11.3137085 \\ x = 11.31 \: ft$

Hence, the ladder reaches 11.31 ft height of the house.

4 0

3 years ago

Farmer Joe sprays his crops every harvesting season. Each season he uses 230 lbs of chemicals on his farm. About 5% of the chemi

joja [24]

Answer:

138

Step-by-step explanation:

after one season.... 0,05 × 230 = 11,5

after 12 seasons ... 11,5 × 12 = 138

3 0

3 years ago

I need help on My homework help me

Sladkaya [172]

Answer: $1,007.00

<em>I hope this helps, and Happy Holidays! :)</em>

3 0

2 years ago

Use the number line below. Which fraction is equivalent to

tankabanditka [31]

B easy simplify 3/6 and it’s 1/2 half of 6 is 3 so B is the answer

3 0

2 years ago

Read 2 more answers