The value of 4 in the 400 is ten times the value of 4 in the 40's place
<h3>
Answer: (c * d)(x) =
4x^3 + 18x^2 - 10x</h3>
Work Shown:
I'm assuming the dot means multiplication. If so, then,
(c * d)(x) = c(x)*d(x)
(c * d)(x) = [ c(x) ] * [ d(x) ]
(c * d)(x) = (4x-2)(x^2+5x) .... substitution
(c * d)(x) = 4x(x^2+5x) - 2(x^2+5x) ... distribute
(c * d)(x) = 4x(x^2)+4x(5x) - 2(x^2)-2(5x) ... distribute again
(c * d)(x) = 4x^3 + 20x^2 - 2x^2 - 10x
(c * d)(x) = 4x^3 + 18x^2 - 10x
Angle GQK=90
GQK=GQL+LQK
90=3n+(4n-15)
n=15
Therefore angle LQK=4(15)-15
=45
Answer:
QR & ST ---> Parallel
ST & QS ---> Perpendicular
RT & QR ---> Perpendicular
QS & RT ---> Parallel
Step-by-step explanation:
2 lines are said to be parallel lines if they will never intersect with each other.
2 lines are said to be perpendicular lines if angle between both the lines are 90°.
