Answer:
D
Step-by-step explanation:
We need the numbers of each before we can calculate the probability
Number of even numbers are 50
Number of odd numbers are 50
Number of perfect squares;
1 , 4 , 9 , 16 , 25 , 36 , 49 , 64 , 81 and 100
10 perfect squares
Probability of selecting even = probability of selecting odd = 50/100 = 1/2
Probability of selecting a perfect square = 10/100 = 1/10
Thus, the probability of having the draws in the other stated in the question will be;
1/2 * 1/2 * 1/10 = 1/40
Answer:
B.

Step-by-step explanation:

Answer:
surface area of the triangular prism
(8×6)+(15×10)+(15×6)+(8×15)
48+150+90+120
408 m²
Volume=width*length*height
So the volume is
V=8*6*13=624cm^3
I hope this helped :)
since triangles are similar
=》 21/9 = x/3
=》 x = 21×3/9 =7