Answer:
10
Step-by-step explanation:
[1 -2]
[3 4]
We can obtain the determinant of the above matrix by doing the following:
Determinant =(1 × 4) – (3 × –2)
Determinant = 4 – – 6
Determinant = 4 + 6
Determinant = 10
Thus, the determinant of the above matrix is 10
Answer:
Jiri is 34 years old.
Step-by-step explanation:
The first thing you want to do is subtract 6 from 74, since Pamela is 6 years older than jiri and their ages summarized is 74, this spans the age difference.
Next you want to divide the answer you got earlier (68, from subtracting 6 from 74) and divide it by two since there are two people. The answer is 34, Jiri is 34 years old and Pamela is 40 years old.
If x is the amount of time Gillian takes,
1/10 - 1/x = 1/25
Therefore, the answer is A
Basically you want to find an equivalent fraction for 3/5 in the answer choices.
12/20 equals 3/5 because 3/5 x 4/4 (or 1) = 12/20
answer: 4
Answer:
d it's the cutest.
Step-by-step explanation:
