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3 years ago

Cuánto es 567 + 678 es igual

Mathematics

1 answer:

leonid [27]3 years ago

4 0

Answer: 1245 :)

Step-by-step explanation:

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10 - 2x, when x = 3<br>

Nesterboy [21]

Answer:

Step-by-step explanation:

Plug in 3 as x in the expression:

10 - 2x

10 - 2(3)

10 - 6

= 4

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3 years ago

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Please help!!! My math teacher doesn’t explain things well.

abruzzese [7]

When you look at the graph, the X is the x value and the one on the f(x) is the y value, imagian it is on a graph and x is the steps you have to walk then imagain a ladder you have to go as high as the f(x) value says, then mark them. if they follow a pattern then write it down, if it does not then write incosentant.

Have a nice day.

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3 years ago

Find a solution x = x(t) of the equation x′ + 2x = t2 + 4t + 7 in the form of a quadratic function of t, that is, of the form x(

Temka [501]

The particular quadratic solution to the ODE is found as follows:

$x=at^2+bt+c$
$x'=2at+b$

$(2at+b)+2(at^2+bt+c)=t^2+4t+7$
$2at^2+(2a+2b)t+(b+2c)=t^2+4t+7$

$\begin{cases}2a=1\\2(a+b)=4\\b+2c=7\end{cases}\implies a=\dfrac12,b=\dfrac32,c=\dfrac{11}4$

Note that there's also the fundamental solution to account for, which is obtained from the characteristic equation for the ODE:

$x'+2x=0\implies r+2=0\implies r=-2$

so that $x_c=Ce^{-2t}$ is a characteristic solution to the ODE, and the general solution would be

$x=Ce^{-2t}+\dfrac{t^2}2+\dfrac{3t}2+\dfrac{11}4$

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3 years ago

The pool has a diameter of 5 feet and a height of 3 feet

BigorU [14]

Answer:

what are you asking

Step-by-step explanation:

cool?

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3 years ago

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The sum o three - fourths of a number and eleven is fourteen.

pav-90 [236]

Answer:

3x+5 ????

Step-by-step explanation:

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3 years ago

Cuánto es 567 + 678 es igual​

Cuánto es 567 + 678 es igual