3 years ago

Can someone pls help for brainlest

1 answer:

6 0

Its C, he has 42 in total and needs 49 49-42=7. I can’t really see the last option well tho.

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zubka84 [21]

6/2= 3, 3-1=2 so your answer is 2

6 0

3 years ago

Ugo [173]

She'll have to fill it up 6 times.

5 0

3 years ago

Korvikt [17]

Answer: wow nice

Step-by-step explanation:

8 0

3 years ago

Nady [450]

Just took the quiz and yeah, the answer is 6<span>π ft. </span>

4 0

3 years ago

Elodia [21]

Answer:

h(t) = 4.68 seconds

Step-by-step explanation:

The function that represents the height of each firework in feet is :

$h (t) = -16t^2 + 150t + 10.5$ .....(1)

We need to find the time the fireworks take to reach their maximum height. For maximum height,

dh/dt = 0

So,

$\dfrac{d}{dt}(-16t^2 + 150t + 10.5 )=0\\\\-32t+150=0\\\\t=\dfrac{150}{32}\\\\t=4.68\ s$

Put t = 4.68 in equation (1).

$h (t) = -16(4.68)^2 + 150(4.68)+ 10.5\\\\h(t)=362.06\ text{feet}$

So, the fireworks will take 4.68 seconds to their maximum height.

7 0

3 years ago