What number is 5% of 46?

2 answers:

6 0

46 x 0.05, since 5% = 0.05 (5 / 100 = 0.05)

46 x 0.05 = 2.3

7/12 is 58.33% 
How do we change fractions to percents? 
The steps are too simple. 

First, divide the numerator (the number at the top of the fraction) by the denominator (the number below the fraction). 
In the case above, 7 is the numerator and 12 is the denominator. 

So, 7 ÷ 12 = 0.58333 

Then, multiply the result by 100. 0.5833 x 100= 58.33 

Finally, add the percent (%) sign to the result. 

Therefore, 7/12 is 58.33%.

Svetlanka [38]2 years ago

5 0

Answer:

Its 2.3

Step-by-step explanation:

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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

Zinaida [17]

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

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