3 years ago

How many solutions does the nonlinear system of equations graphed below

Mathematics

1 answer:

Fudgin [204]3 years ago

8 0

The answer I think I don’t for sure i think it’s d

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the location of a post office is marked at (2,2) on a coordinate grid. which point is about 18 units from the location of the po

Mkey [24]

(2,-15) Down, (20, 2) Right, (2,15) Up and (-16,2) Left

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3 years ago

The height of a triangle is 4 m less than its base. The area of the triangle is 48 m².What is the length of the base?

yaroslaw [1]

Triangle Area = .5 * base * height

48 = .5 * (x +4) * x

48 = (.5x + 2) * x

48 = .5x^2 + 2x

.5x^2 + 2x -48 = 0

x = 8

base = 12

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3 years ago

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I need the formula not the answer thanks<br><br>x^{2} [/tex]>49

sladkih [1.3K]

X²>49
well, I don't know a formula but this is how I would solve it
I first solve x²=49 to obtain x=+/-7

so then would it be x>+/-7?
if we try 8 it works
if we try -9 it works

so answer is x>+/-7
basically x<-7 or x>7

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3 years ago

What percent of 176 is 17.6

Natalka [10]

10%

To find 100% percent sure, multiply 17.6 *10

17.6 * 10 = 176

7 0

4 years ago

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Uppose y(t)=9e−5t

adoni [48]

If $y(t)=9e^{-5t}$ satisfies the ODE $y'-ky=0$ , then

$y'(t)=-45e^{-5t}$

and substituting into the ODE gives

$-45e^{-5t}-9ke^{-5t}=0\implies k=-5$

so that the ODE is $y'+5y=0$ .

I'm assuming that you're also supposed to determine the initial value $y_0$ given this ODE. You have

$y'+5y=0\implies e^{5t}y'+5e^{5t}y=0\implies(e^{5t}y)'=0\implies e^{5t}y=C\implies y=Ce^{-5t}$

Given $y(0)=y_0$ , you have

$y_0=C$

but since you already know that $y=9e^{-5t}$ , it follows that $C=9$ , and in turn that $y_0=9$ .

5 0

3 years ago