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
Answer:
x≈1.53182607
Step-by-step explanation:
m athw a y
Answer:
-9.1r + 3.9
Step-by-step explanation:
-6.2r - 4.6 -2.9r + 8.5
-6.2r and -2.9r are alike, so we combine.
-6.2r + -2.9r = -9.1r
-4.6 and 8.5 are alike, so we combine.
-4.6 + 8.5 = 3.9
All of the obtuse angles in your problem is 150 degrees. So if x is an obtuse angle you also get 150 degrees. All the acute angles are 30 degrees.
<h3>
Answer: f(x) = (1/3)x + 3</h3>
This is basically in the form y = mx+b with m = 1/3 as the slope and b = 3 as the y intercept. I'm using f(x) in place of y to indicate function notation.
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Work Shown:
The goal is to solve for y.
x - 3y = -9
-3y = -9-x ... subtracting x from both sides
-3y = -x-9
y = (-x-9)/(-3) .... dividing both sides by -3
y = -x/(-3) - 9/(-3) ... break up the fraction
y = (1/3)x + 3 .... simplify
f(x) = (1/3)x + 3 .... replace y with f(x)