Here you are:
I have simplified each square root expression that you listed.
<h3>
Answer:</h3>
$20.55
<h3>
Step-by-step explanation:</h3>
(price last week) - 27% × (price last week) = $15 . . . . what the problem says
(price last week) × (1 - 0.27) = $15 . . . . factor out price
(price last week) = $15/0.73 . . . . . . . . . divide by the coefficient of price
(price last week) ≈ $20.55
Answer:
5/6
Step-by-step explanation:
Answer:
3.9 m²
Step-by-step explanation:
The full number is 3.89904 square meters.
Please tell me whether or not it is correct :)
Answer: 10
Explanation:
n(A × B) represents the number of elements of set A × B, the cartesian product of set A and set B.
Note that the number of elements of the cartesian product of two sets is the product of the number of elements of each of the two sets.
In the problem, n(A × B) is equal to the product of the number of elements of set A and number of elements of set B. Since the number of elements in set A is 5 and the number of elements in set B is 2,
n(A × B) = 5 × 2 = 10