The measure of angle between diameter
ab
and chord
ac
is 30°. a tangent to the circle at point c intersects line
ab
at point d. prove that triangle acd is isosceles

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb