All categories

3 years ago

100 PTS!!

1 answer:

5 0

$h=-16t^2+vt+c\qquad\text{original equation}\\\\h+16t^2-c=vt\qquad\text{subtract terms not containing v}\\\\v=\dfrac{h+16t^2-c}{t}\qquad\text{divide by the coefficient of v}$

2. Filling in the given numbers, we have ...

$v=\dfrac{131+16(3)^2-5}{3}=90\qquad\text{ft/s}$

3. The velocity is undefined when t=0. The equation is telling you it would take infinite velocity to travel some distance in zero time. The equation is meaningless in such a situation.

You might be interested in

Find all solutions in the interval from [0,2pi)<br> 2cos(3x)= -sqrt{2}

algol [13]

Solutions of $2cos(3x)= -\sqrt{2}$ in the interval from [0,2pi) is $x =\frac{\pi}{12}$ and $x = \frac{23\pi}{12}$ .

<u>Step-by-step explanation:</u>

Find all solutions in the interval from [0,2pi)

$2cos(3x)= -\sqrt{2}$

⇒ $2cos(3x)= -\sqrt{2}$

⇒ $\frac{2cos(3x)}{2}= \frac{-\sqrt{2}}{2}$

⇒ $cos3x= \frac{-\sqrt{2}(\sqrt{2})}{2{\sqrt{2}}}$

⇒ $cos3x= \frac{-2}{2{\sqrt{2}}}$

⇒ $cos3x= \frac{-1}{{\sqrt{2}}}$

⇒ $cos^{-1}(cos3x)= cos^{-1}(\frac{-1}{{\sqrt{2}}})$

⇒ $3x=\pm \frac{\pi}{4}$

⇒ $x=\pm \frac{\pi}{12}$

Cosine General solution is :

$x = \pm cos^{-1}(y)+ 2k\pi$

⇒ $x = \pm \frac{\pi}{12}+ 2k\pi$ , k is any integer .

At k=0,

⇒ $x =\frac{\pi}{12}$ ,

At k=1,

⇒ $x = - \frac{\pi}{12}+ 2\pi$

⇒ $x = \frac{23\pi}{12}$

Therefore , Solutions of $2cos(3x)= -\sqrt{2}$ in the interval from [0,2pi) is $x =\frac{\pi}{12}$ and $x = \frac{23\pi}{12}$ .

5 0

3 years ago

100 divided by 13.5 plus 24

Stella [2.4K]

100/13.5 + 24 = 31.41 approximitely

7 0

3 years ago

Read 2 more answers

he graph shows f(x) = [1/2]^x and its translation, g(x). Which describes the translation of f(x) to g(x)? translation of four un

Annette [7]

Answer by YourHope:

Hi! :)

The graph shows f(x) = [1/2]^x and its translation, g(x). Which describes the translation of f(x) to g(x)?

Translation of four units up! The f(x) function cannot possibly be f(x)=1/2, though, because that would be a horizontal line through y = 1/2 and that function is clearly not a horizontal line. So whatever f(x) is really, add 4 to the tail end of it to show its translation!

6 0

4 years ago

A bottle of 2 1/4 of water how many glasses of volume 3/16 litres can it fit

Dima020 [189]

Step-by-step explanation:

7/2 yan po hwhehehehe want again

8 0

3 years ago

Read 2 more answers

Calculate the area of a circle with a radius of 2cm

Musya8 [376]

A=3.14r^2

1. 2^2= 4

2. 3.14 x 4 =12.56 as your answer

5 0

4 years ago