Answer:
81 million
Step-by-step explanation:
In one year there is 365 days, if you divide 365/4.5 the answer is 81.1. And every 4.5 days add 1 million people, then you multiply
81.1*1 000 000 = 81 100 000
approaching to the nearest million, 81 million of babies are added each year.
In here, we will use the distance formula
Compute the distance between <span>(-5, 3) and (5, 3)
</span>
<span>
= 10
The distance between </span>(-5, 3) and (5, 3) is 10
Answer:
- 7x + 10 + y² + 7 y
Step-by-step explanation:
Hope this will help
Answer:
105
Step-by-step explanation:
First of all this is to easy if you don't know how to do this then your in danger of math and you should ask your math teacher for private online lesson regarding this.
LCM of 15,21
3 | 15 | 21
5 | 5 | 7
7 | 1 | 7
| 1 | 1
LCM: 3x5x7 -> 105
Answer:
Volume of the frustum = 225.0952
Surface area = 274
Step-by-step explanation:
The volume can be calculated as the difference of the complete pyramid and the tip of the pyramid.
To find the height of the frustum, we can use pythagoras theorem in the following triangle:
first side: 9 - 5 = 4
second side h (height)
hypotenusa: slang = 6
6^2 = h^2 + 4^2
h^2 = 36 - 16 = 20
h = 4.4721
To find the height of the complete pyramid (H), we can use the following rule of three:
H / 9 = (H - 4.4721) / 5
5H = 9H - 40.2489
4H = 40.2489
H = 10.0622
Volume of complete pyramid:
V_complete = (1/3)*9^2*10.0622 = 271.6794
Volume of the tip:
V_tip = (1/3)*5^2*(10.0622 - 4.4721) = 46.5842
Volume of the frustum:
V_frustum = V_complete - V_tip = 225.0952
The surface area is the bigger base area + smaller base area + four side areas.
Bigger base area = 9^2 = 81
Smaller base area = 5^2 = 25
Side area = (9+5)*6/2 = 42
Total surface area: 81 + 25 + 4*42 = 274
