Step-by-step explanation:
-11 + 3(b + 5) = 7
-11 + 3b + 15 = 7
3b + 4 = 7
3b = 3
b = 1
Answer:
7 adults, 12 students
Step-by-step explanation:
10 20 30 40 50
60 70
74 78 82 86 90
94 98 102 106 110 114 118
Answer:
B, 7/20
Step-by-step explanation:
If two events are mutually exclusive that means that there is no intersection
so in the union formula: AUB=A+B-A∩B
A∩B=0
we can write P(a)=x
7/10=7/20+x+0
7/10-7/20=x
x=7/20
The right, because your going forward not backwards
Answer:
63.4°
Step-by-step explanation:
Given that AB and BC are the legs of the right triangle, then opposite to angle A is side BC and adjacent to angle A is side AB.
By definition, the tangent of angle A is:
tan(∠A) = opposite leg / adjacent leg
tan(∠A) = BC/AB
tan(∠A) = 12/6
∠A = arctan(2)
∠A = 63.4°
