Compare 8 ⋅ 107 to 2 ⋅ 104
choice of answers are:
a) 8 ⋅ 107 is 4,000 times larger than 2 ⋅ 104.
b) 8 ⋅ 107 is 400 times larger than 2 ⋅ 104
c) 8 ⋅ 107 is 40 times larger than 2 ⋅ 104.
d)8 ⋅ 107 is 4 times larger than 2 ⋅ 104.

idk

step-by-step explanation:

maybe try   if it is work from a book, if not try

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.