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3 years ago

4x 2.8y 2x 2.2y 5x simplified

Mathematics

1 answer:

OverLord2011 [107]3 years ago

5 0

The answer is x=-0.4545454545y

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If a figure is a triangle, then it has three sides.

stellarik [79]

This answer is true

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3 years ago

Suppose a tub has the shape of an elliptical paraboloid given by z = ax2+by2 (where a, b are some positive constants). If a marb

Umnica [9.8K]

Answer:

It would roll in this direction.

$\nu = (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})$

Step-by-step explanation:

It would roll to the direction of maximum decrease, which is the -1 times the direction of maximum increase, which is given by the gradient of the function.

Since

$z = ax^2 + by^2$

For this case, the gradient of your function would be

$\nabla z = (2ax , 2by)$

And -1 times the gradient of your function would be

$-\nabla z = (-2ax , -2by)\\$

Then, at

$(1,1,a+b),\\x = 1 \\y = 1$

So it would go towards

$v = (-2a,-2b)$

The magnitud of that vector is

$|v| = 2\sqrt{a^2+b^2}$

and to conclude it would roll in this direction.

$\nu = (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})$

6 0

3 years ago

Simplify the equation.

Phoenix [80]

Answer:

C. $3j^{3}l$

Step-by-step explanation:

1) First you cancel $k^{2}$ because they are completely the same. then you take out the constants and simply.

2)You then have to use the Quotient Rule:

$\frac{x^{a} }{x^{b} } =x^{a - b}$

You should have ...

$3j^{6-3} l^{5-4}$

3) Simplify 6 − 3 to 3.

$3j^{3} l^{1}$

4) Simplify 5 − 4 to 1.

5) Use Rule of One: $x^{1} =x$

Answer is !!!

$3j^{3} l$

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3 years ago

Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale. (1 point) 9.7 9.2 9

Vilka [71]

X= 9.2

From the figure, the chord (12) is drawn with a line (from the center of the circle) perpendicular to it. It can be said that the chord 12 is bisected by the 7 long line from the center which gives us with 6 each of the two parts of the chord. Since they are forming (the 6 and 7) a right angled triangle, we can then use Pythagorean theorem to find X, which can be seen as the radius at the same time hypotenuse of the right angled triangle.

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3 years ago

On any given day, the number of users, u, that access a certain website can be represented by the inequality |125-u|<30

timofeeve [1]

Answer:

Step-by-step explanation:

it means that

125-30 < u < 125+30 so

95 < u < 155

it gives $]95,155[$

7 0

3 years ago

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