A triangle = 180°
one angle = 90°
second angle = 40°
third angle = 50°
n(A) is the number of elements is A, sometimes written |A|. I count 7. n(A)=7
13 is among the elements of A, so 13 ∈ A is TRUE
26 is among the elements of A, so 26 ∉ A is FALSE
10 isn't in A, so 10 ∉ A is TRUE
ANSWER
EXPLANATION
The dot product of two vectors:
and
is
The given vectors are:
and
The dot product of these vectors is
Answer:
the greatest common factor is 2
and Least common multiple is 220.
Step-by-step explanation:
Answer: 8 movies
12 + 1.50x = 3x
Move the variables to one side
12 = 1.50x
Isolate x
8 = x
Check:
3(8)= 24
12.00 + 1.50(8) = 24