Are these ratios equivalent? 0.42: 42 and 0.18: 1.8

yes or no

no . Not equivalent.

0.42:42 = 0.42/42 = 42/4200 = 1/100

0.18/1.8 = 18/(1.8×100) = 18/180 = 1/10

1/100 ≠ 1/10

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!