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murzikaleks [220]

3 years ago

15

To eliminate the radical on sqrt/x as part of an equation, we would square the expression. To eliminate the rational exponent on

x2, what power would you raise the expression to?
-1
1/2
1
2

1 answer:

xxTIMURxx [149]3 years ago

4 0

Answer:

2, got it right on my test.

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Parenthesis 3 plus negative square root of 16 parenthesis 6 minus negative square root of 64

inessss [21]

Answer: 2

Explanation: got off math wy in pic

6 0

3 years ago

Find the maximum and minimum values of the function f(x,y)=2x2+3y2−4x−5 on the domain x2+y2≤100. The maximum value of f(x,y) is:

ryzh [129]

First find the critical points of <em>f</em> :

$f(x,y)=2x^2+3y^2-4x-5=2(x-1)^2+3y^2-7$

$\dfrac{\partial f}{\partial x}=2(x-1)=0\implies x=1$

$\dfrac{\partial f}{\partial y}=6y=0\implies y=0$

so the point (1, 0) is the only critical point, at which we have

$f(1,0)=-7$

Next check for critical points along the boundary, which can be found by converting to polar coordinates:

$f(x,y)=f(10\cos t,10\sin t)=g(t)=295-40\cos t-100\cos^2t$

Find the critical points of <em>g</em> :

$\dfrac{\mathrm dg}{\mathrm dt}=40\sin t+200\sin t\cos t=40\sin t(1+5\cos t)=0$

$\implies\sin t=0\text{ OR }1+5\cos t=0$

$\implies t=n\pi\text{ OR }t=\cos^{-1}\left(-\dfrac15\right)+2n\pi\text{ OR }t=-\cos^{-1}\left(-\dfrac15\right)+2n\pi$

where <em>n</em> is any integer. We get 4 critical points in the interval [0, 2π) at

$t=0\implies f(10,0)=155$

$t=\cos^{-1}\left(-\dfrac15\right)\implies f(-2,4\sqrt6)=299$

$t=\pi\implies f(-10,0)=235$

$t=2\pi-\cos^{-1}\left(-\dfrac15\right)\implies f(-2,-4\sqrt6)=299$

So <em>f</em> has a minimum of -7 and a maximum of 299.

4 0

3 years ago

Chelsea completes 35 math problems in 7 min.

Andru [333]

Answer = 5 problems per minute

Because you do the number of problems divided by the minutes eg 35/7 = 5

3 0

3 years ago

How do you identify if the equation is linear, exponential, or quadratic?

Naddika [18.5K]

Answer:

It's form. Linear is a normal line, exponential is a curvy line, and quadratic is a u shape with the vertice on the y-axis line, making half of the u on the left quadrant and the other half on the right quadrant

Step-by-step explanation:

first is linear, second is exponential and third is quadratic

8 0

4 years ago

Read 2 more answers

Fifty multiplied by the quantity twenty divided by a number n is greater than or equal to two hundred fifty

Fudgin [204]

4 is the correct answer

8 0

3 years ago