Notice the tickmarks
AD = DC
now AC, which is the whole length from side to side,
is 4y-36
AD is 12, and since DC is the same as AD, so
DC = 12
AC = AD + DC, or 12 + 12
now, we know AC is also 4y-36
so

solve for "y"
Answer:
0.448 seconds
Step-by-step explanation:
d = -16t² -4t + 412
find t when d = 407
substituting d = 407 into the equation:
407 = -16t² -4t + 412 (subtract 407 from both sides)
-16t² -4t + 412 - 407 = 0
-16t² -4t + 5 = 0 (multiply both sides by -1)
16t² + 4t - 5 = 0
solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with
t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)
or
t = (-1/8) (1 -√21) = 0.448 seconds (answer)
(2x-2)(3x-52)
6x^2-104x-6x+104
6x^2-110x+104
Final answer; 6x^2-110x+104
Answer:
10 hrs to get 350
Step-by-step explanation: