Step-by-step explanation:
-3x² + 7x + 2 + x³ - x² -9
= x³ -3x² -x² + 7x +2 -9
= x³ -4x² + 7x -7
Answer:
The probability that a student pick from this group at random either has blue or brown eyes is
P = 40/65 = 0.6154
P = 61.54%
Corrected question;
In a group of 65 students 10 have brown eyes and 30 have blue eyes. Find the Probability that a student pick from this group at random either has blue or brown eyes
Step-by-step explanation:
Given;
Total number of students = 65
Number of students with either blue or brown eyes;
= 10+30 = 40
The probability that a student pick from this group at random either has blue or brown eyes is
P = 40/65 = 0.6154
P = 61.54%
The shape of the resulting cross section of the hexagonal pyramid in the diagram given is: a hexagon.
<h3>What is Hexagonal Pyramid?</h3>
A hexagonal pyramid is a pyramid with six lateral faces and an hexagonal base.
In the diagram, the plane cuts each of the lateral faces of the pyramid, giving a resultant shape that has 6 sides and angles, which is a hexagon.
Thus, the cross section shape is: a hexagon.
Learn more about hexagonal pyramid from:
brainly.com/question/457798
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Answer:
flour per cup of sugar=2 1/2 cups of flour
sugar per cup of flour=2/5 cups of sugar
Step-by-step explanation:
