If q represents the quantity of solution needed, you require
... 0.90q = 0.15×(100 mL)
... q = (0.15/0.90)×(100 mL)
... q ≈ 16.7 mL
_____
You actually need 16 2/3 mL of concentrated solution.
14.76 divides by 3 equals 16.2533
Given that plane P is parallel to the planes containing the base faces of the prism; then, if the plane meets the prism between the planes containing the hexagonal bases, then P meets the prism in a hexagonal region that is congruent (with the same size) to the bases of the prism.
Answer:
C. 83.5%
Step-by-step explanation:
-1 < z < 2.5
0.9938-0.1587 = 0.8351
83.5%