What is the product?
(y2 + 3y+7)(8y2 +8+1)
@y* + 24y2 + 60y2 +10y+7
by* + 25y + 4y2 +10y+7
bya +25y + 60y2 + 7y+7
bya +25y +60y2 + 10+7

a box 3 3/4 feet long or 4+ feet.

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).