Answer:
50
Step-by-step explanation:
and can be expressed in complex form, with = i
= = × = 8i
= = × = 4i
the factors can then be expressed as
(6 + 8i)(3 - 4i) ← expand using FOIL
= 18 - 24i + 24i - 32i² [ i² = ( )² = - 1 ]
= 18 - 24i + 24i + 32 ← collect like terms
= 18 + 32 + 0
= 50
Since 350 = half the price, the original price is double the half
350*2= $700
Answer:
Range = highest observation - lowest observation
180-157 = 23
See the attached pictures: