D equals 38.2 I think because t equals 9.55. You would add -16t with -4t and get -20t. Which would turn into D=-20t^2+382. Since you can't multiply 2 with -20t, you would divide it by 382 which would be 191. D=-20t+191 with this, you would subtract 191 from +191 which would cancel out and it would turn the problem into -191=-20t. You would divide -20 from itself and -191 and get t=9.55. Then you plug t where it was in the problem and then you get that D=38.2. I hope my answer is right and it helps you.
The anwser is 6.5 hours and if you add your problem you will get you anwser.
Answer:
2/5
Step-by-step explanation:
√96 simplified is 9.8
Use the Pythagorean theorem
The formula for a triangle is
1/2bh, because
b*h is the formula for a rectangle, and a triangle is half a rectangle, no matter what size. And what's another way to write "no more than a number"?
x, or
less than or equal 2 x. Now we have both things we need for the answer to this problem.
1/2bh
10 is your answer. Hope this helped!