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AveGali [126]
4 years ago
15

Find all values x=4x

Mathematics
2 answers:
anastassius [24]4 years ago
8 0
There is only one number that satisfies x=4x, meaning the a number quadrupled is the same number.

That number is 0.

I guess if you want to be technical, then the square root of any negative number would also work. The square root of a negative number doesn't exist, it is what is called an "imaginary number". So in a way an imaginary number would be the same as four times an imaginary number.

If you want to get deep, then there's another case that works. Infinity. Which is a greater value, one infinity or four infinities? They're the same thing because they both never end.

Cerrena [4.2K]4 years ago
4 0
The answer is 0 :D :)


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A plane flies 440 miles with wind, and 340 miles against wind in same time. If speed of wind is 25 mph, find speed in still air?
Viefleur [7K]
V = s/t

now, t is equal for both cases so we write these 2 equations:
440/(Vp+Vw) = t

and 

340/(Vp-Vw) = t
Now again, since t is equal for both cases we can make these 2 equations equal to eachother.
440/(Vp+25) = 340/(Vp-25)
(Vp - 25)*44=34*(Vp+25)
44Vp - 1100 = 34Vp + 850
10Vp = 1950
Vp = 195

Answer is 195mph
6 0
3 years ago
Pls answer this 100 points pls HELP
satela [25.4K]

Answer:

The answer is

N+ 1 = 3+2/2

=3

Step-by-step explanation:

The answer is 3

This is a odd number

6 0
3 years ago
Read 2 more answers
Please help! I am stuck on this
DaniilM [7]

Answer:

c.

Step-by-step explanation:

Assuming we are not restricting the domain of f, the inverse isn't a function

\frac{1}{ {x}^{2} }  - 7

y =  \frac{1}{ {x}^{2} }  - 7

x =  \frac{1}{ {y}^{2} }  - 7

x + 7 =  \frac{1}{ {y}^{2} }

{y}^{2}  =  \frac{1}{x + 7}

y =  \sqrt{ \frac{1}{x + 7} }

Since square root are Positve or negative, the function will not be a function.

The correct answer is c.

7 0
2 years ago
If u answer correct u r a math god its hard trust me
defon

Answer:

27 square units

Step-by-step explanation:

Area of triangle = 1/2(b)(h)

Base = 6

Height = 9

1/2(6)(9)

1/2(54)

Area = 27 units

4 0
3 years ago
With steps... Thanks..
german

Answer:

\boxed{-25x-y}

\boxed{-p^2q +5pq^2}

Step-by-step explanation:

(-15x+6y)-(10x+7y)

Distribute negative sign.

-15x+6y-10x-7x

Combine like terms.

\boxed{-25x-y}

2pq(p+q)- (3pq(p-q))

Expand brackets.

2p^2 q+2pq^2 -(3p^2q-3pq^2)

Distribute negative sign.

-3p^2q+3pq^2+2p^2q+2pq^2

Combine like terms.

\boxed{-p^2q +5pq^2}

6 0
3 years ago
Read 2 more answers
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