All categories

3 years ago

-3x^2 + 4xy - y^3 x = 5 and Y = 1

Mathematics

1 answer:

Marrrta [24]3 years ago

5 0

Answer: -56

Step:

Plug in the numbers into the equation

-3(5)² + 4(5)(1)-1³

Any expression multiplied by 1 remains the same. Evaultuate the power.

-3×25+4×5-1³

Multiply the numbers. 1 raised to any power equals 1.

-3×25+20-1

Multiply the numbers

-75+20-1

Calcualte the sum or difference and you get -56.

Hope this helpsʕ•ᴥ•ʔ

You might be interested in

Find the absolute extreme of the function on the closed interval. y=9e^xsinx , [0,pi]

Molodets [167]

For convenience sake, I will let $y=f(x)=9e^{x}\sin x$

First, we evaluate the function at the endpoints of the interval.

$f(0)=9e^{0}\sin(0)=0\\\\f(\pi)=9e^{\pi}\sin(\pi)=0$

Then, we need to find the critical points.

We can start by taking the derivative using the power rule.

$f'(x)=9e^{x} \frac{d}{dx} \sin x+9\sin x \frac{d}{dx} e^{x}=9e^{x}(\cos x+\sin x)$

Setting this equal to 0,

$9e^x (\cos x+\sin x)=0$

Since $9e^x > 0$ , we can divide both sides by $9e^x$ .

$\cos x+\sin x=0\\\\\sin x=-\cos x\\\\\tan x=-1\\\\x=\frac{3\pi}{4}$

$f\left(\frac{3\pi}{4} \right)=9e^{3\pi/4}\sin \left(\frac{3\pi}{4} \right)=\frac{9\sqrt{2}e^{3\pi/4}}{2}$

So, the absolute minimum is $\boxed{\left(\frac{3\pi}{4}, \frac{9\sqrt{2}e^{3\pi/4}}{\sqrt{2}} \right)}$ and the absolute minima are $\boxed{(0,0), (\pi, 0)}$

3 0

2 years ago

X less than 7;7 tell whether the number in bold is the solution

Rufina [12.5K]

NO, because then it would be equal to

8 0

4 years ago

I need this problem solved

attashe74 [19]

Answer:

Step-by-step explanation:

4 0

2 years ago

Factor de expression:2x2 − 5x − 3

kramer

The answer is (2x + 1)(x - 3)

5 0

3 years ago

Read 2 more answers

I need help on this. please help

11111nata11111 [884]

Answer:

Step-by-step explanation:

It is 1.5 for it it is good

6 0

4 years ago