Use desmos:
This is the piece wise graph
Answer:
18
Step-by-step explanation:
The arrows on lines AB and CD indicate that these 2 shapes are similar and these 2 lines are corresponding so :
Linear scale factor :
12 ÷ 10 = 1.2 or 6/5
Let's use the fraction form
Using the linear scale factor we can make an equation to solve for x :
2x+4 = 6/5(x+8)
Expand the brackets :
2x+4 = 6/5x + 9.6
Subtract 4 from both sides :
2x = 6/5x + 5.6
Subtract 6/5x from both sides :
4/5x = 5.6
Divide both sides by 4/5 :
x = 7
Now substitute this value into the expression for the length of AE :
AE = 2(7) + 4
AE = 14 + 4
AE = 18
Hope this helped and have a good day
Answer:
c
Step-by-step explanation:
I think since am still in secondary school
it's should be (x-4)(x-4)
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
77/100, 81%, 0.84 because it equals 77% than 81% than 84%