444.3 = (4 x 100) + (4 x 10) + (4 x 1) + (3 x 1 /10 )
Answer
A. (4 x 100) + (4 x 10) + (4 x 1) + (3 x 1 /10 )
Answer:
150
Step-by-step explanation:
t = sqrt((4π^2mr)/F)
Plug in the given values.
12 = sqrt((4(3.14^2)(84.4)(6.5))/F)
Solve for F.
12 = sqrt(21635.90624/F)
144 = 21635.90624/F
F = 150.249
1. 4(6+4)
2. 5(1+3)
3. 4(4+5)
4. 4(1+2)
5. 5(2+5)
6. 12(1+3)
7. 24(1+3)
8. 8(5+2)
9. 5(4+10)
10. 4(3+11)
11. 6(6+7)
12. 10(1+6)
Answer: 80 cubic meters (choice B)
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Explanation:
The floor of the pyramid is a pentagon made of five congruent isosceles triangles as shown in the diagram below. Each triangle has a base of 6 meters and height 2 meters. The base and height are always perpendicular.
Each triangle mentioned therefore has area base*height/2 = 6*2/2 = 12/2 = 6 square meters. Five such triangles results in a total area of 6*5 = 30 square meters. This is the area of the pentagonal floor.
We'll multiply this area by the height of the pyramid (8 meters) and then take 1/3 of this to get the pyramid's volume
volume = (1/3)*(area of floor)*(height of pyramid)
volume = (1/3)*(30)*(8)
volume = 10*8
volume = 80 cubic meters
1. Nintendo
2. A. True
3. A. Oscilloscope