A cyclist is riding on a straight trail that is 30 miles long. She starts at mile marker 9. She stops for lunch at the midpoint of the trail. She gets a flat tire midway between
where she stopped for lunch and the end of the trail.
At what mile marker did she get the flat tire?

answear:

a

step-by-step explanation: a

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation:

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2