7x3= 21
21/9= 2.33333333333
15% was spent on props, rest on equipment 100 - 15 = 85% on equipment
.85 * 640 = $544 spent on equipment
Answer:
P = 0.23375
Step-by-step explanation:
given,
you remain in store for 15 minutes.
you friend remains in store for 10 minutes.
probability that they are store at the same time
from the graph attached below
shaded region shows the required probability,.
probability of the square = 1
probability of the shaded region = 1 - (area of lower triangle - area of upper triangle)
area of lower triangle = \dfrac{1}{2}(0.85)(0.85)
= 0.36125
area of the upper triangle = \dfrac{1}{2}(0.9)(0.9)
= 0.405
probability of the shaded region = 1 - (0.36125+0.405)
= 0.23375
Answer: A circle.
Step-by-step explanation:
To solve this exercise is important to remember:
- A sphere is a three-dimensional object whose surface is round.
- A cross section is defined as the intersection of a figure with three dimensions and a plane.
- By definition, all the intersects of a sphere an a plane are circles.
Based on the information shown above, you can conclude that the cross section, which is shown in the figure attached, is a circle.