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1 year ago

25 percent of what is 38?

Mathematics

1 answer:

AnnyKZ [126]1 year ago

8 0

Answer: 152

Step-by-step explanation:

Let the number = x.

Therefore, x*25% = 38

25% as a decimal is 0.25.

So, 0.25x = 38

We can divide both sides by 0.25:

x = 152

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140% out of what gives 56

Verizon [17]

140 / 100 * X = 56

X = 56 * 100 / 140 = 5600 / 140 = 40

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Determine the intercepts of the line.

Strike441 [17]

Answer:

Step-by-step explanation:

An intercept is where the line hits the axis.

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2 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:

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

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

(-4)-(-2)-{(-5)-[(-7)+(-3)-(-8)]}

aleksklad [387]

Answer:

is one

Step-by-step explanation:

its just one i know trust me

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1 year ago

Hey! Can you help out a bit?

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2 years ago

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