Ax4+bx3+cx2+dx+e=0 : [math]x=-\frac{b}{4a}\pm\left(\frac {1}{2}\sqrt{\frac{3b^2-8ac}{12a^2}+ \frac{1}{3a}\left(\sqrt[3]{\frac{2c ^3-9bcd+27b^2e+27ad^2-72ace+\sqrt{\ left(2c^3-9bcd+27b^2e+27ad^2-72ace\ right)^2-4\left(c^2-3bd+12ae\right) ^3}}{2}}+\frac{c^2-3bd+12ae}{\sqrt[ 3]{\frac{2c^3-9bcd+27b^2e+27ad^2-72 ace+\sqrt{\left(2c^3-9bcd+27b^2e+27 ad^2-72ace\right)^2-4\left(c^2-3bd+ 12ae\right)^3}}{2}}}\right)}\right) \pm\frac{1}{2}\sqrt{-4\left(\frac{1 }{2}\sqrt{\frac{3b^2-8ac}{12a^2}+\f rac{1}{3a}\left(\sqrt[3]{\frac{2c^3 -9bcd+27b^2e+27ad^2-7[/math]

only for a luh cutie that i know of ;)

omg tell me who the cutie i

Step-by-step explanation:

in confuzzled

Step-by-step explanation:

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)