Answer: $15,000
As $35,000-$20,000=$15,000.
That's basically the profit he had made, or the return on his investment (ROI).
As he already had $20,000, he had "only" made $15,000.
If the value of |A| is 48 the possible values for x in the matrix is 4 or -2.
<h3>How to use determinant to find a value in a matrix?</h3>
The determinant of the matrix A is as follows:
|A| = 48
Therefore,
48 = (3x × 2x) - (4x × 3)
48 = 6x² - 12x
6x² - 12x - 48 = 0
3x² - 6x - 24 = 0
x² - 2x - 8 = 0
x² + 2x - 4x - 8 = 0
x(x + 2 -4(x + 2) = 0
(x - 4)(x +2) = 0
Therefore,
x = 4 or -2
learn more on determinant here: brainly.com/question/19206601
Answer:
C is your answer
Step-by-step explanation:
Answer:
Step-by-step explanation:
3 - 2
- First change the two mixed numbers to improper fractions. Multiply the whole number by the denominator then add the numerator to the answer.
Bring the fractions to the same denominator by finding the lowest common multiple of both denominators
Then the answer becomes .
HOPE THIS HELPED