ANSWER :
a. {2, 6, 9}
b. {6}
EXPLANATION :
From the problem, we have the sets :
A' denotes the elements that are NOT present in A but present in U.
B' denotes the elements that are NOT present in B but present in U.
That will be :
a. A' ∪ B'
The symbol ∪ denotes the union of two sets.
That will be :
b. A' ∩ B
The symbol ∩ denotes the intersection or common elements of the two sets
That will be :
Answer:
16/81
Step-by-step explanation:
Given the expression, 81y'' = -16y where y = coskt,
We want to know the value of k that satisfies the expression
y' = -ksinkt
y" = -k²coskt
Substitute y and y" into the expression given;
81y'' = -16y
81(-k²coskt) = -16(kcoskt)
-81k = -16
Divide both sides by -81
-81k/-81 = -16/-81
k = 16/81
Hence the value of k is 16/81
Answer:
We use ratio and proportion
If EC$ 2.50 = US$ 1.00
Then EC$ 20.00 = US$ 20 × 1 / 2.50
= US$ 8.00
Hope this helps
Let the integers be x and x + 2, then
x + x + 2 = 3(x + 2) - 2x
2x + 2 = 3x + 6 - 2x
2x + 2 = x + 6
2x - x = 6 - 2
x = 4
Therefore, the integers are 4 and 6
45=
3*15
3*3*5
Final answer: 3^2* 5^1