It would be (rounded) 5
Because
31 / 6.15 = 5.04065
Hope this helped
Have a great day/night
Answer:
The smart-phone hit the ground when t = 7 s
Step-by-step explanation:
The height "h" is defined as:
h=16t^2 + 48t + 448
And, when the smart-phone hits the ground, h = 0 ft . Then,
16t^2 + 48t + 448 = 0
And this is a quadratic equation, and we can solve it using the formula for ax^2 + bx + c = 0, which is
x=![\frac{-b±\sqrt{b^{2}-4ac } }{2a}](https://tex.z-dn.net/?f=%5Cfrac%7B-b%C2%B1%5Csqrt%7Bb%5E%7B2%7D-4ac%20%7D%20%7D%7B2a%7D)
So,
t = ![\frac{-48±\sqrt{48^{2} -4(-16)(448)} }{2(16)}](https://tex.z-dn.net/?f=%5Cfrac%7B-48%C2%B1%5Csqrt%7B48%5E%7B2%7D%20-4%28-16%29%28448%29%7D%20%7D%7B2%2816%29%7D)
t = ![\frac{-48±\sqrt{2304+28672} }{-32}](https://tex.z-dn.net/?f=%5Cfrac%7B-48%C2%B1%5Csqrt%7B2304%2B28672%7D%20%7D%7B-32%7D)
And, we have two responses,
t_1 =
and t_2 = ![\frac{-48-\sqrt{30976} }{-32}](https://tex.z-dn.net/?f=%5Cfrac%7B-48-%5Csqrt%7B30976%7D%20%7D%7B-32%7D)
t_1 = - 4 s and t_2 = 7 s
As we know, the time is a quantity that cannot have a negative value, so, we take the result 2.
Answer:
amount of pepper required= 7.5 tsp
amount of garlic powder required = 30 tsp
Step-by-step explanation:
Given,
amount of salt used for small batch of the recipe = 2 tsp
amount of pepper used for small batch of the recipe = 1 tsp
amount of garlic powder used for small batch of the recipe = 4 tsp
amount of salt used for the larger batch = 15 tsp
= 2 x 7.5 tsp
= amount of salt used for small batch the recipe x 7.5
So,
the amount of pepper needed for the larger batch= 7.5 x amount of pepper used for the small batch of recipe
= 7.5 x 1 tsp
= 7.5 tsp
the amount of garlic powder needed for the larger batch= 7.5 x amount of garlic powder used for the small batch of recipe
= 7.5 x 4 tsp
= 30 tsp
Answer:
the answer would be B, if you flip it to the right thats the andwer you get
Step-by-step explanation:
Answer:
ahhhhhhhhhhhhhhhhh
Step-by-step explanation: