Step-by-step explanation:
a) barn area = 9 × 9 = 81 m^2
b) perimeter = 9 × 4 = 36m or
= 9+9+9+9 = 36m
54 miles / hr = 54*5280 = 285,120 ft/hr
= 285,120 / 3600 = 79.2 ft/s
Y=x^2+12x+30
8x-y=10
sub x^2+12x+30 for y in the secodn equaiton
8x-(x^2+12x+30)=10
8x-x^2-12x-30=10
-x^2-4x-30=10
times -1
x^2+4x+30=-10
add 10 both sides
x^2+4x+40=0
use quadratic formula
we find that we have 2 imaginary roots and therefor are not on the real plane, they are not plotted on the imaginary plane
no real solution
x=-2+6i or -2-6i
the interseciton on the imaginary plane is
(-2+6i, -26+48i) or (-2-6i,-26-48i)
Answer:
i cant see the numbers...
Step-by-step explanation:
Answer:
0.38
Step-by-step explanation:
0×x=0.3 bexuse the angle need works
