The variance would be 1213.89
i hope this helps :)
Answer:
can be simplified by applying partial fraction
Step-by-step explanation:
Answer:
93 m
Step-by-step explanation:
given that the scale is 1:1000
this means that 1 cm of the model = 1000 cm in the actual statue
it is given that the model is 9.3 cm tall,
this means that the actual statue is,
= 9.3 x 1000
= 9300 cm
= 93 m tall
Using trial and error
x^4+5x^2-36 factors to (x-2)(x+2)(x^2+9)
2x^2+9x-5 factors to (x+5)(2x-1)
so
(x-2)(x+2)(x^2+9)(x+5)(2x-1)=0
set each to zero
x-2=0
x=2
x+2=0
x=-2
x^2+9=0
x^2=-9
x=3√-1
x=3i
x+5=0
x=-5
2x-1=0
2x=1
x=1/2=0.5
roots are
x=-5-2,0.5,2, and the imaginary root 3i
