Answer:
a =
Step-by-step explanation:
Given
ai + bj and 5i - 2j are perpendicular and b = 3, that is
ai + 3j and 5i - 2j are perpendicular, then
The scalar product = 0 , that is
5a - 6 = 0 ( add 6 to both sides )
5a = 6 ( divide both sides by 5 )
a =
Answer:
y + 2 = (x - 9)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = and (a, b) = (9, - 2) , thus
y - (- 2) = (x - 9) , that is
y + 2 = (x - 9)
Answer:
139
Step-by-step explanation:
(5*8)+(9*11)
40+99
139
Answer:
A
B
A
C
D
C
A
B
B
D
Step-by-step explanation: