Answer:
She uses 243 beads for the 5th string.
Step-by-step explanation:
In this problem, we can see a pattern. If she triples the number of beads in each of the next strings, that means that we just take the last number and multiply by 3. If the first string uses 3, then:
The second uses 9, 3 * 3 = 9
The third uses 27, 9 * 3 = 27
The fourth uses 81, 27 * 3 = 81
And the 5th uses 243, 81 * 3 = 243.
Answer:
95 in.²
Step-by-step explanation:
Total surface area of the rectangular pyramid = 4(area of triangle) + area of rectangle
Area of triangle = ½*base*height
base = 5 in.
height = 7 in.
Area of triangle = ½*5*7 = 17.5 in.²
Area of rectangle = Length*width = 5*5 = 25 in.²
Plug in the values
Total surface area of the rectangular pyramid = 4(17.5) + 25
= 95 in.²
Answer:
Come one! Who actually knows this l bozo
Step-by-step explanation:
The answer to 5. Is Movie B and the answer to 6. Is Movie A.
![E[x] = \sum{p_i*x_i}](https://tex.z-dn.net/?f=E%5Bx%5D%20%3D%20%5Csum%7Bp_i%2Ax_i%7D)
=0.4(-25000)+0.25*0+0.35(40000)
=-10000+0+14000
=+4000
