Answer:
Options B and C.
Step-by-step explanation:
Difference of squares is defined as
where, a and b both area real numbers.
It is sum of squares.
It is difference of squares.
It is difference of squares.
It is not a difference of squares.
Therefore, the correct options are B and C.
Answer:
x= 17
Step-by-step explanation:
6x+12=3x+63
Solve :)
Answer:
41 and 77
Step-by-step explanation:
x: his age the first time he went to space
y: his age the second time he went to space
the second time he went to space he was 5 years younger than twice the age when he went his first time, then:
y = 2x - 5
the sum of both ages is 118, then:
x + y = 118
If you replace y = 2x - 5 in x + y =118:
x + 2x - 5 = 118
3x = 123
x = 41
replacing x:
41 + y = 118
y = 118 - 41
y = 77
so when he was 77, he was 5 years younger than twice 41 ( 41*2 = 82 => 82 - 5 =77)
C I think is the correct answer
36 because if you add the two know angles and subtract the sum of those by 180 you get 36