12. I’m sorry I’m horrible at word problems
13. C
14. C
Answer:
10 i think
Step-by-step explanation:
Answer:
Region covered by the dominoes is 90 unit²
Step-by-step explanation:
Here we have;
Area half of each domino = 1 unit²
Therefore, area of each domino = 2 unit²
Region where dominoes can be found = 8 × 6 dominoes
Region where dominoes can be found = 48 dominoes area unit²
Number of dominoes omitted = 3 dominoes
Therefore, total number of dominoes in region = 48 - 3 = 45 dominoes
Region covered by the dominoes = 45 × 2 unit² = 90 unit².
Answer:
The time after which the rocket hit the ground is 5 seconds
Step-by-step explanation:
Given as :
The distance of the cover by rocket at the height h = - 16 t² + 160 t
Let the time after which rocket hit the ground = T seconds
Now, When the rocket hits the ground, then at that time, the velocity of the rocket becomes zero.
I.e velocity =
= 0
Or, v =
= 0
Now, v =
Or, v = 
or, v = - 32 t + 160
Now, ∵ velocity of rocket after reaching the ground becomes zero
So, v = - 32 t + 160 = 0
Or, 32 t = 160
Or, t = 
∴ t = 5 sec
So, The time after which the rocket hit the ground = 5 sec
Hence The time after which the rocket hit the ground is 5 seconds answer
Answer:
Adult= 150 and Children=136
Step-by-step explanation: