Answer:
a) t = 4 secs
b) t = 3 secs
Step-by-step explanation:
h = 64 ft
Initial velocity = 48 ft/s
S = 64 + 48t - 16t^2
a) Set S = 0 and solve for t
0 = 64 + 48t - 16t^2
Divide through by 16
0 = 4 + 3t - t^2
t^2 - 3t - 4 = 0
t^2 - 4t + t - 4 = 0
t(t - 4) + 1(t - 4) = 0
(t + 1) (t - 4) = 0
t + 1 = 0 or t - 4 = 0
t = -1 or t = 4
t = {-1,4}
t = 4 seconds
b) Set S = 64 and solve for t
64 = 64 + 48t - 16t^2
64 - 64 = 48t - 16t^2
0 = 48t - 16t^2
Divide through by 16
0 = 3t - t^2
t^2 - 3t = 0
t(t - 3) = 0
t = 0 or t-3 = 0
t = 0 or t = 3
t = {0,3}
t = 3 secs
Answer:
The answer is explained below
Step-by-step explanation:
The steps to prioritize the mission with a scoring version are as follows:
Collection: This step consists of collecting and collecting all of the details associated with the mission.
Classification: This step consists of prioritization of the challenge based on a category method.
Verification: This step includes approval and verification of all classified projects.
They are then carried out in this order because these steps make certain safety, connectivity, integrity, cost-effectiveness, and right challenge implementation. Each step depends on the previous step. They are connected to every other; therefore, they are carried out in a particular sequence.
Answer:
1
Step-by-step explanation:
To multiply fractions, you multiply the numerator by the numerator and the denominator by the denominator. -8*-1 will turn positive because there are 2 negative signs, and will become 8. 1*8 is 8.
The fraction is now 8/8, which can be simplified to 1.
Therefore, 1 is the correct answer.
Answer:
Euro
Step-by-step explanation:
For this, since 4y - 7 and 2y - 1 are congruent, we can solve for y by setting them equal to each other.
Firstly, subtract 2y on both sides of the equation. 
Next, add 7 on both sides of the equation. 
Finally, divide 2 on both sides of the equation, and your answer will be y = 3
