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2 years ago

How many solutions is in 8+4x=2x+8+2x

Mathematics

2 answers:

posledela2 years ago

6 0

Answer:

Infinite

Step-by-step explanation:

if we take any no. instead X gives same equivalent equation

Agata [3.3K]2 years ago

4 0

Answer:

sdsgsdfes

Step-by-step explanation:

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Simplify:<br>3×5-1-(2² +6÷2)

ivanzaharov [21]

Answer:

Step-by-step explanation:

6 0

2 years ago

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Finding Derivatives Implicity In Exercise,Find dy/dx implicity.<br> x2e - x + 2y2 - xy = 0

Klio2033 [76]

Answer:

the question is incomplete, the complete question is

"Finding Derivatives Implicity In Exercise,Find dy/dx implicity . $x^{2}e^{-x}+2y^{2}-xy$ "

Answer : $\frac{dy}{dx}=\frac{y-(2-x)xe^{-x}}{(4y-x)}$

Step-by-step explanation:

From the expression $x^{2}e^{-x}+2y^{2}-xy$ " y is define as an implicit function of x, hence we differentiate each term of the equation with respect to x.

we arrive at

$\frac{d}{dx}(x^{2}e^{-x )+\frac{d}{dx} (2y^{2})-\frac{d}{dx}xy=0\\$

for the expression $\frac{d}{dx}(x^{2}e^{-x})$ we differentiate using the product rule, also since y^2 is a function of y which itself is a function of x, we have

$(2xe^{-x}-x^{2}e^{-x})+4y\frac{dy}{dx}-x\frac{dy}{dx} -y=0\\\\(2-x)xe^{-x}+(4y-x)\frac{dy}{dx}-y=0 \\$ .

if we make dy/dx subject of formula we arrive at

$(4y-x)\frac{dy}{dx}=y-(2-x)xe^{-x}\\\frac{dy}{dx}=\frac{y-(2-x)xe^{-x}}{(4y-x)}$

5 0

3 years ago

Simplify 7x^2+10x^2+5y^3

vova2212 [387]

7x^2+10x^2= 17x^2
Answer. 17x^2+5y^3

6 0

2 years ago

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How would i create a real life example that can be modeled by the expression -2×4

solong [7]

Bob is diving
he is at a depth of 2 meters below sea level
sam goes down 4 times as deep
how deep is sam

depth is a negative thing because you are 2 below 0 or -2
then we mutiply -2 by 4 to get 4 times to get -8 meters below sea level

8 0

2 years ago

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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. A rocket is launched from atop a

umka2103 [35]

When it hits the ground, then h=0
find the xintercept or in this case the tintercepts
c=76
v=135

h=-16t^2+135t+76
use quadratic formula

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=-16
b=135
c=76

x= $\frac{-135+/- \sqrt{135^2-4(-16)(76)} }{2(-16)}$
x= $\frac{-135+/- \sqrt{18225+4864} }{-32}$
x= $\frac{-135+/- \sqrt{23089} }{-32}$
aprox
x=-0.5297 or 8.967
exclude the negative root since you can't have negative time

means that it takes 8.97 seconds to hit the ground

4 0

2 years ago