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3 years ago

I’m not tryna fail lolll help

Mathematics

1 answer:

RoseWind [281]3 years ago

3 0

Your not tryna fail so all you gotta do is act dumb noo

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An airplane is flying at 35,000 feet above sea level airplane started to send a rate of 2500 ft./min. after five minutes how man

vitfil [10]

Answer:

22,500 feet

Step-by-step explanation:

Initial Height of the airplane = 35000 feet

Rate of descend = 2500 ft/min

This means for every minute the height of the plane is decreasing by 2500 feet.

We have to find how high above the sea level is the airplane after 5 minutes.

Since, in one minute the distance of plane is decreasing by 2500 feet, in 5 minutes the decrease in its distance would be = 2500 x 5 = 12,500 feet

Thus, after 5 minutes the height of airplane would have decreased by 12,500 feet. Since, the initial height of airplane was 35,000 feet, the new height after 5 minutes would be:

Height after 5 minutes = 35000 - 125000 = 22,500 feet

After 5 minutes, airplane is 22,500 feet above the sea level

6 0

3 years ago

The line that contains the point Q( 1, -2) and is parallel to the line whose equation is

Triss [41]

Let's call this line y=mx+C, whereby 'm' will be its gradient and 'C' will be its constant.

If this line is parallel to the line you've just mentioned, it will have a gradient 2/3. We know this, because when we re-arrange the equation you've given us, we get...

$y-4=\frac { 2 }{ 3 } \left( x-3 \right) \\ \\ y-4=\frac { 2 }{ 3 } x-2\\ \\ y=\frac { 2 }{ 3 } x-2+4\\ \\ y=\frac { 2 }{ 3 } x+2$

So, at the moment, our parallel line looks like this...

y=(2/3)*x + C

However, you mentioned that this line passes through the point Q(1, -2). If this is the case, for the line (almost complete) above, when x=1, y=-2. With this information, we can figure out the constant of the line we want to find.

-2=(2/3)*(1) + C

Therefore:

C = - 2 - (2/3)

C = - 6/3 - 2/3

C = - 8/3

This means that the line you are looking for is:

y=(2/3)*x - (8/3)

Let's find out if this is truly the case with a handy graphing app... Well, it turns out that I'm correct.

3 0

3 years ago

Factor by grouping x^3-4x^2+7x-28

Komok [63]

Answer:

(x - 4)(x^2 + 7)

Step-by-step explanation:

x^2 is a factor of the first two terms: x^3 - 4x^2 = x^2(x - 4).

7 is a factor of the last two terms: 7(x - 4).

Note how (x - 4) is a factor of the entire four-term expression given above.

Then: x^3-4x^2+7x-28 = (x - 4)(x^2 + 7)

5 0

3 years ago

Find all the positive integers less than 1000 that are divisible by 2,3,5 and 7

user100 [1]

210, 420, 630, 840
multiples of 2*3*5*7

6 0

2 years ago

Read 2 more answers

Simplfy 4x(2x-3) distributive property

Roman55 [17]

Greetings!

Simplify the Expression.
$=4x(2x-3)$

Distribute the Parenthesis.
How? Multiply the terms inside the Parenthesis by the term outside of the Parenthesis.
$=4x*2x-4x*3$

Combine Like Terms.
$=8x^2-12x$
$\left[\begin{array}{ccc}8x^2-12x\end{array}\right]$

Hope this helps.
-Benjamin

7 0

3 years ago