Answer:
392
Step-by-step explanation:
40% of 980 = 0.4 × 980 = 392
The answer is Figure D, because a polygon has to have <em>all</em> actual sides and no curves.
They are equal.
(a/b)^2 = (a/b)(a/b) = (a*a)/(b*b) = a^2/b^2
0=4(x²+8x+16)-12
0=4x²+32x+64-12
0=4x²+32x+52
0=x²+8x+13
D=b²-4ac
D=64-52=12
x=(-b-√D)/2a
x=(-b+√D)/2a
x=(-8-2√3)/2= (-2(4+√3))/2= -(4+√3)
AND
x=(-8+2√3)/2=-2(4-√3)/2= -(4-√3)
Answer:
Line b and line c are perpendicular.
Step-by-step explanation:
Perpendicular lines have opposite reciprocal slopes, and -1/2 and 2 are opposite reciprocals.
