What multiplies to be 48 and adds up to be -19

Mathematics

1 answer:

-BARSIC- [3]2 years ago

3 0

-3 and -16 multiply to 48 since negatives cancel and add to -19

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PLZZZZZZZZZZZZZZZ HELP ME FAST

alekssr [168]

So it's actually 0.36363636... with the 36 repeating, right?

Here's a technique for converting repeating decimals to fractions: 

N = 0.3636363636... 
100N = 36.36363636... 

This means 100N - N = (36.363636...) - (0.36363636...). This simplifies to 99N = 36, because the "0.36363636..." parts of both numbers on the right cancel each other out. 

Solving this for N gives 
N = 36/99, or 4/11 

If you take a calculator (or use long division) and divide 4 by 11, you'll see that it's 0.36363636...

8 0

2 years ago

X=1/16y^2 the directrix of the parabola is

yan [13]

To solve this problem you must apply the proccedure shown below:

1. You have the following equation of a parabola, given in the problem above:

x=1/16y^2

2. Then, based on the graph attached, you have:

p=y^2/4x
p=8^2/(4)(4)
p=64/16
p=4

3. The directrix is:

directrix=h-p
directrix=0-4
directrix=-4

The answer is:-4