Step-by-step explanation:
.5miles = 2640 ft
tan a = 2640/1390
a - angle of descent
a = 62.22
It will take 20 seconds to move from one end to another because if 20 feet is moved within 5 seconds, do that 4 more times to get to 80. Finally, multiply 5 by 4 to get 20 seconds.
The answer is 7x/12 - 1/2. Its the first option in your picture. Hope this helps .
Answer:
x= -8 x=1
Step-by-step explanation:
x^2+7x-8=0
Factor
What 2 numbers multiply to -8 and add to 7
8*-1 = -8
8+-1 = 7
(x+8) (x-1) =0
Using the zero product property
x+8 =0 x-1=0
x= -8 x=1
2y^3-10y^2+4y hope this helps good luck
