Maybe u should do inverse operation on both sides idk but just try it
This is another one for my "impossible math question" file. All of the answer choices are wrong. (None applies.)
According to the problem statement, the length you have marked "x" in the diagram is 15 inches. If the side length of one of the pavers is "s", then the Pythagorean theorem tells us
s² + (2s)² = 15²
5s² = 225
s² = 225/5 = 45 . . . . . . the area of one square is 45 in² (not 225 in²)
Then
s = √45 = 3√5 . . . . . . . the length of one side is not 5√3
so the perimeter is
p = 4s = 4·3√5 in = 12√5 in ≈ 26.83 in . . . . not 75 inches.
The area of the 6-block L-shaped path is
total area = 6s² = 6·45 in² = 270 in² . . . . not 450 in²
And the total perimeter is 14 sides, so is
total perimeter = 14s = 14·3√5 in = 42√5 in . . . . not 60√3 in
_____
In cases like this where the answer key is incorrect, you might try asking your teacher show the class how to work the problem.
Answer:
Step-by-step explanation:
this equation is written in y = mx + b form
m = slope
b = the y intercept
so if we rearrange the equation to
y = -23x -6
the slope is -23
the y intercept is (0, -6)
Answer:
Step-by-step explanation:
Given
Let the probability of false positive be represented with p
Required
Determine the probability the first occurrence of p was at the third person
We have that:
The probability that a trustworthy person do not fail the test (q) is:
The required probability implies that:
The first person did not fail: i.e. 0.85
The second person did not fail: i.e. 0.85
The third person failed: i.e. 0.15
This is then calculated as:
<em>Hence, the probability that the first false positive occurred at the third person is 0.108375</em>
