Answer:
Give me the formula and i can do it
Step-by-step explanation:
Answer:
The value of m is 
.
Step-by-step explanation:
If two vectors 
and 
are perpendicular to each other then their dot product will be zero i.e 
If two vectors and are parallel to each other then their cross product will be zero i.e 
Given vectors are a= (3,4) and b=(m,2)
The position vector of 
is =
The position vector of 
is =
Since and are perpendicular.
Then,
⇒3.m +4.2=0
⇒3m+8=0
⇒3m= -8
The value of m is .
Answer:
67 eghan says the difference between the least amount of time it takes a student to say the alphabet and the greatest amount
Step-by-step explanation:
Hello from MrBillDoesMath!
Answer:
x = 4
x = ( -7 + sqrt(29)) /2
x = ( -7 - sqrt(29)) /2
Discussion:
x^3+3x^2-23x-20 factors as (x - 4) (x^2 + 7 x + 5) so x =4 is one root
The roots of the quadratic factor, x^2 + 7x + 5, can be found using the quadratic formula where a = 1, b = 7, and c = 5
x = ( -b +\- sqrt(b^2-4ac)) / 2a
x = ( -7 +\- sqrt( 7^2 - 4*1*5) ) / (2*1) =>
x = ( -7 +\- sqrt (49-20) ) / 2 =>
The "+" root: ( -7 + sqrt(29)) /2
The "-" root: ( -7 - sqrt(29)) /2
Regards,
MrB
