Answer:
-12
Step-by-step explanation:
f (x)=6x – 6
Let x= -1
f(-1) = 6(-1) -6
= -6-6
= -12
2.8*10^12 cells/ 2000= 1.4*10^9 cells.
The number of cells the scientist uses in the second experiment is 1.4*10^9 cells.
Hope this helps~
Answer:
A
Step-by-step explanation:
In order to get rid of the absolute value bars we would need to put the number outside of the absolute value bars into two signs. One is going to be positive and one is going to be negative. So in this case, the two equations would be 5k+6=39 and 5k+6=-39
Answer:
w= 7.59
Step-by-step explanation:
9514 1404 393
Answer:
3.61 seconds
Step-by-step explanation:
The bird starts 50 feet in the air, so will come down to a height of 40 feet after 3.61 seconds.
We want to solve h = 40.
40 = -16t^2 +55t +50
16t^2 -55t -10 = 0
t = (55 +√(55^2 -4(16)(-10)))/(2(16)) = (55 + √3665)/32 ≈ 3.61060
The bird will be 40 ft above the ground the first time after about 3.61 seconds.