Whats 19 divided by 5 in long division

Mathematics

2 answers:

Ber [7]3 years ago

4 0

19 divided by 5 would equal 3 and 4/5, or 3.8 as a decimal, because 19 goes into 5- 3 times and there is a remainder of 4. So, in long division, 19 ÷ 5= 3.8, 3 and 4/8, or 3 remainder 4. All if those are correct, though I suggest you use 3.8. Oh, and btw, I'm pretty sure this isn't high school level. Anyways, hope this helps you.

viktelen [127]3 years ago

3 0

19 divided by 5 in long division is = $\frac{19}{5} = 3.8$

Move the decimal 1 place to the left.

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A projectile is launched into the air. The function h(t) = –16t2 + 32t + 128 gives the height, h, in feet, of the projectile t s

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Answer:

t = 4 seconds

Step-by-step explanation:

The height of the projectile after it is launched is given by the function :

$h(t)=-16t^2+32t+128$

t is time in seconds

We need to find after how many seconds will the projectile land back on the ground. When it land, h(t)=0

So,

$-16t^2+32t+128=0$

The above is a quadratic equation. It can be solved by the formula as follows :

$t=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = -16, b = 32 and c = 128

$t=\dfrac{-32\pm \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=\dfrac{-32+ \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}, \dfrac{-32\- \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=-2\ s\ \text{and}\ 4\ s$