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4 years ago

What will be the answer of this and please give full details

Mathematics

1 answer:

Degger [83]4 years ago

8 0

First off, you have to convert 8 minutes into seconds.
A minute is <em>60 seconds</em>, so multiply 60 by 8.
60×8=480
Now, change 10⁹ into a standard number. Since the number is 10 that is to have an exponent, the exponent, in this case 9, indicates how many zeros are in the standard number.
10⁹=1,000,000,000
So, multiply 480 by 1,000,000,000.
480×1,000,000,000=480,000,000,000
So, the answer is 480,000,000,000.

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The product of x and 7 are

Anika [276]

Answer:7x

Step-by-step explanation:because you can’t multiply them like 2*2 so you just put them together

7 0

3 years ago

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A diagnal is drawn on a square. How many triangles are formed ? What is the sum of the measures of the angles of a triangle? wha

Alik [6]

2 triangles are formed.
The sum of the measures of the angles of a triangle is 180 degrees.
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2 years ago

Please Helppppp☺️☺️☺️☺️☺️

pishuonlain [190]

Hi there!

Since one of the angles in this set of 2 lines is a right angle, we know that every other angle is a right angle because vertical angles are congruent and that because each line has a total of 180 degrees.

Thus, Angle NDA and RDY are both 90 degrees and add up to 180 degrees.

Since the two angles add up to 180, they are supplementary angles.

Also, we should notice that those two angles are across each other. Thus, they are also vertical angles.

Your answers are choices B and C.

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6 0

3 years ago

Please help with geometry

coldgirl [10]

Answer:

x = 8

Step-by-step explanation

Complimentary angles have a sum of 90*. Thus when adding the two equations together, we must get 90*.

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3 years ago

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Calculate all four second-order partial derivatives and confirm that the mixed partials are equal. f(x,y)= 2e^xy

nadya68 [22]

ANSWER TO QUESTION 1

The given function is

$f(x,y)=2 {e}^{xy}$

The partial derivative of f with respect to x means we are treating y as a constant. The first derivative is

$f_{x} = 2y {e}^{xy}$

and the second derivative with respect to x is,

$f_{xx} = 2 {y}^{2} {e}^{xy}$

ANSWER TO QUESTION 2

The given function is

$f(x,y)=2 {e}^{xy}$

The partial derivative of f with respect to y means we are treating x as a constant. The first derivative is

$f_{y} = 2x{e}^{xy}$

and the second derivative with respect to y is

$f_{yy} = 2 {x}^{2} {e}^{xy}$

ANSWER TO QUESTION 3

Our first mixed partial is

$f_{xy}$

We need to differentiate
$f_{x} = 2y {e}^{xy}$
again. But this time with respect to y.

Since this is a product of two functions of y, we apply the product rule of differentiation to obtain,

$f_{xy} = 2y( {e}^{xy})' + ({e}^{xy})(2y)'$

$f_{xy} = 2xy {e}^{xy} + 2{e}^{xy}$

ANSWER TO QUESTION 4

The second mixed partial is

$f_{yx}$

We need to differentiate
$f_{y} = 2x{e}^{xy}$

again. But this time with respect to x.

Since this is a product of two functions of x, we apply the product rule of differentiation to obtain,

$f_{yx} = 2x({e}^{xy})' + ({e}^{xy})(2x)'$

$f_{yx} = 2xy {e}^{xy} + 2{e}^{xy}$

Hence,

$f_{xy} = 2xy {e}^{xy} + 2{e}^{xy} =f_{yx}$

4 0

3 years ago