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3 years ago

(-w-6)/(w^2+4w-12), how do i write this into simplest form?

Mathematics

1 answer:

PIT_PIT [208]3 years ago

7 0

First factorise the top = -(w+6)
The first factorise the bottom: (w^2 + 4w -12) = (w+6) (w-2)
Therefore the two (w+6) cancels out and you are left with -1 / w-2

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A stone is thrown upward, its height h meters after t seconds is given by this formular h=30t-5t². Find t when it is at a height

Simora [160]

Answer:

the answer is

T¹=5s

T²=1s

Am not sure about why there's two times , although perhaps the two times indicate the starting time and the other indicate the time when the stone hits 25m above the ground

Step-by-step explanation:

the solving steps are in the picture.

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3 years ago

A square patio has an area of 200 square feet how long is each side to the nearest tenth

professor190 [17]

Answer: THERE ARE TWO WAYS OF DOING THIS!!

Key words: square, area, 200 square feet

Area: what × what = 200?

Step-by-step explanation:

A square has 4 sides, and all of its sides are of equal length.

So if a square has 4 sides, and its total area is 200 square feet, what do you have to do?

You have to divide the area by 4!

So 200 ÷ 4 = ?

200 ÷ 4 =50

So each side is 50 feet long.

In this scenario, there are no tenths because each side is exactly 50 feet. If you wanted the lengths to the nearest tenth, your answer would be 50.0

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If patio is a square, basically it says the area is $A=a^{2}$ where a is equivalent to one side of the square.

Now that we know that a = 200, we will be able to solve the expression

$a^{2} =200$

a= $\sqrt{200}$

a=14.1421, which is the square root of $\sqrt{200}$

Now we rounded to the nearest tenths

a≈14.1

We rounded to 14.1 because the rounding rule is: <em>4 and below rounds down, 5 and above rounds up.</em>

The result is 14.1

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I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

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3 years ago

At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. The bicyclist head

nalin [4]

Answer:

D Option is the correct one.

Step-by-step explanation:

As,

Distance covered = 40km = 40000m(1k=1000m)

time = 10:15-9:00 = 1:15hours = 75mins

We need to find the rates of the bicyclist in one hour so, for this first we need to calculate the total distance which covered in one hour.

For calculating distance for one hour,

40000/75 = 533.33m/min (means they covered 533.33m distance in one min)

for one hour:

533.33*60= 32000m = 32km

They covered 32km distance in one hour.

Now from the given options D is the correct one because according to give condition north bicyclist covered 4km more that south one. And other reason is we also need to check the sum of distance covered by the both cyclist which must be equal to 32km.

So for A,

Sum = 19 + 15 =34 (wrong not equal to 32)

For B,

Sum = 18 + 13 = 31 (wrong)

For C,

Sum = 16 + 10 = 26(wrong)

For D,

Sum = 18 + 14 = 32 (Right)

And second distance b/w both distance is 4km.

18-14 = 4(Right)

So, D option is the right one.

I hope it will help you.

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2 years ago

What is the solution to the following system of equations?

lisov135 [29]

Answer:

4*2 + 2*-1= 6

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3 years ago

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Express 0.1846 as a mixed number

Vinil7 [7]

Answer: I'm not sure about the mixed number but the fraction is 923/5000

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