Answer:
There are four different combinations that can occur this way. They are;
BBB
GGG
BBG
GGB
Step-by-step explanation:
To obtain this result, we work with the combination rule which explains that the total number of combinations for a set with x elements is given by the formula;
2^ˣ
In the question above we have two sets of elements, namely, boys and girls. So, the total number of combinations we can get when this rule is obeyed is given by;
2^²
=4
Therefore, we can have three boys(BBB), three girls(GGG), two boys and one girl(BBG), and two girls and one boy(GGB).
$2,653.60 would be the total cost with tax and the tax is $173.60
The answers are
1) ∠A = 53
°
2) ∠D = 127°
3) x = 5
4) AB = 7
<u>Step-by-step explanation</u>:
In parallelogram,
- Consecutive angles are supplementary (∠A + ∠B = 180°).
- Opposite angels are congruent (∠D = ∠B).
- Opposite sides are congruent (AB = DC).
1) find angle A :
Given, ∠B = 127°
∠A + ∠B = 180°
∠A = 180-127= 53
°
2) find angle D :
Given, ∠B = 127°
∠D = ∠B
∠D = 127°
3) find x :
AB = DC
(x+2) = (2x-3)
2+3 = 2x-x
x = 5
4) find AB
:
AB = (x+2)
AB = 5+2
AB = 7