Using the combination formula, it is found that photos of 9 different chairs were shown to the home owner.
The order in which the chairs are chosen is important, hence, the <em>permutation formula </em>is used to solve this question.
<h3>What is the permutation formula?</h3>
is the number of different permutations of x objects from a set of n elements, given by:
In this problem, two chairs are chosen from a set of n, and there are 72 different outcomes, hence:
Which is a quadratic function with coefficients 
, hence:
Taking the positive root:
Photos of 9 different chairs were shown to the home owner.
You can learn more about the permutation formula at brainly.com/question/25925367
Answer:
Right triangles are never acute triangles.
Obtuse triangles are sometimes isosceles triangles.
Step-by-step explanation:
The first 2 answers you have included are correct.
Answer: 210
Explanation:
Each box has 12 packets of fruit snacks and 18 packets of cashews. That gives 12+18 = 30 packets overall per box. Since we have 7 boxes, that tells us the total count is 7*30 = 210
Answer:
Every repeating or terminating decimal is a rational number
Each repeating decimal number satisfies a linear equation with integer coefficients, and its unique solution is a rational number.
The formula for volume of a cone is V=(1/3)*h*π*(r^2)
our height is 7.5 feet, and since the length of the base of the cone (diameter) is 22 feet long, the radius is 11 feet long.
(1/3)*7.5*π*(11^2)=302.5*π=950.3
so the volume of the house is about 950 feet cubed.
