1/4 divided by 5/6 = 1/a× b/c
1 answer:
You might be interested in
22.8 gms
Step-by-step explanation:
Step 1:
Given,
Mass of the element = 590 gms
Percentage decay per minute = 19.5%
Step 2 :
Fraction of the element remaining at the end of 1 minute = 1 - 0.195 = 0.805
Hence the fraction of element remaining after 15 minutes = = 0.03863
So the mass of the element remaining after 15 minutes = 0.03863 * 590 = 22.8 rounded off to the nearest 10th of a gram
mass of the element remaining after 15 minutes = 22.8 gms
We found a counterexample, so the statement is false.
<h3>Is the statement true?</h3>
Let's use the matrix:
This is a 4x4 matrix with determinant equal to -2.
The inverse matrix is:
If we multiply it by 2, we get:
The adjoint of that is the original matrix, actually:
Which we already know, has a determinant of -2.
So the statement is false, as we found a counterexample.
If you want to learn more about matrices:
#SPJ1