Answer:
length/width = 1/1 = 1
Step-by-step explanation:
(3x)(2x) = 12150
6x^2 = 12150
x^2 = 2025
x = 45
Length is 135 ft, width is 90 ft, perimeter is 450 ft
Geometric mean: 135 : x :: x : 90
x^2 = 12150
x = 45√6
The second rectangular piece of land is a square !
length/width = 1/1 = 1
Answer:
0.0111% probability that he answers at least 10 questions correctly
Step-by-step explanation:
For each question, there are only two outcomes. Either it is answered correctly, or it is not. The probability of a question being answered correctly is independent from other questions. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
A multiple-choice examination has 15 questions, each with five answers, only one of which is correct.
This means that 
What is the probability that he answers at least 10 questions correctly?









0.0111% probability that he answers at least 10 questions correctly
Answer:
The answer is one solution because the graphs are together in one specific point.
(-2,3). When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x).