Answer:
B) Aluminum and steel are good conductors of electricity.
Step-by-step explanation:
Answer:
i think that is 147
Step-by-step explanation:
Hello :
<span>3-x/2=6
</span><span>-x/2=6 -3
</span>-x/2=3
- x = 6
x = - 6
Answer:
The base of the ladder is 2.58 m.
Step-by-step explanation:
Given that,
The angle of elevation for a ladder from the ground is 75°.
The length of a ladder, H = 10 foot
We need to find the distance from the house should you place the base of the latter. Let the base of the ladder is b. Using trigonometry,
![\cos\theta=\dfrac{B}{H}\\\\B=H\times \cos\theta\\\\B=10\times \cos(75)\\\\B=2.58\ m](https://tex.z-dn.net/?f=%5Ccos%5Ctheta%3D%5Cdfrac%7BB%7D%7BH%7D%5C%5C%5C%5CB%3DH%5Ctimes%20%5Ccos%5Ctheta%5C%5C%5C%5CB%3D10%5Ctimes%20%5Ccos%2875%29%5C%5C%5C%5CB%3D2.58%5C%20m)
So, the base of the ladder is 2.58 m.