Answer:
12 feet
Step-by-step explanation:
Since you place the ladder on TOP of the building, the bottom of the ladder would be at the top of the building, and the building is 12 feet high
Answer:
See Below
Step-by-step explanation:
Ok, so in this problem you have some vertical angles. These are angles oppisites from each other. Therefore; d = 52, f = ?, and e = 77. All the angles added together will = 360. Let's add up the angles we know and subtract the whole from 360.
52 + 52 + 77 + 77 = ?
104 + 154 = 258
360 - 258 = 102
Since we know that f and the unlabeled angle are the same, we need to divide this total between the two of them.
102/2 = 51
Therefore;
d = 52
e = 77
f = 51
Answer:
The weight of the mentioned silver bar is:
Step-by-step explanation:
Remember that the formula of density is:
From this formula, you can clear the mass (because this is the valor you need to solve the exercise), so you will have:
With this last formula, you must replace the values given in the exercise:
- Mass = density * volume
- Mass = 0.04 lb/cm^3 * 642 cm^3
- <u>Mass = 25.68 Lb
</u>
You can check this value using the original formula of density and see if the density has the same valor of the exercise:
- Density = mass / volume.
- Density = 25.68 Lb / 642 cm^3
- Density = 0.04 Lb / cm^3