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3 years ago

Evaluate the following expressions for x = 2.Which expression is equivalent to (–3y – x) – (5y – 8x)?

Mathematics

1 answer:

QveST [7]3 years ago

4 0

Step-by-step explanation:

-3 -(5y-8x)-x-(5y-8x

15y*y+24xy-5xy+6x*x

15y*y+19xy+6x*x

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The measure of 13 of the 14 angles of a 14-gon add up to 2016 what must be the 14th angle measure be

Leya [2.2K]

There is a way to solve for the interior angles of the polygon add up to, by using the expression: (Note: n being the side: (n - 2)180

solve for the 14 angles first. Plug in 14 for n

14 - 2 = 12

12 x 180 = 2160

All of the angles combined together = 2160°. Note that it is given to us that 13 of the angles = 2016°

Solve for the last angle. Set the last (14th) angle as x:

x + 2016 = 2160.

Isolate the x. Note the equal sign, what you do to one side, you do to the other. Subtract 2016 from both sides

x + 2016 (-2016) = 2160 (-2016)

x = 2160 - 2016

x = 144

Answer: The 14th angle must be 144°

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4 years ago

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taurus [48]

3x+21 is a simplified version of this algebraic expression

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4 years ago

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Plz fast Write an equivalent expression. −2(5+7g)

KIM [24]

Answer:

equivalent expression.

−2(5+7g) is -10-14g or -14g -10

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3 years ago

Find the absolute maximum and minimum of the function on the given domain. f (x comma y )equals 8 x squared plus 7 y squared on

pickupchik [31]

Answer:

the maximum value is 7

The minimum value is 0

Step-by-step explanation:

Step One : Interpret the question

The above question can be written like

The Equation

$f(x,y) = 8x^2 +7y^2$

The diagram of the triangular plate and the bounded lines is shown on the first uploaded image

From the diagram $f(0,0) = 8(0)^2 +7(0)^2 =0$

$f(1,0) =8(1)^2 + 7(0)^2 = 8$

$f(0,1) =8(0)^2 + 7(1)^2 = 7$

Partial differentiation of the equation w.r.x

$A =\frac{\delta f}{\delta x } = 16x$

Partial differentiation of the equation w.r.y

$B =\frac{\delta f}{\delta y } = 14y$

Looking at the diagram the maximum value is 7 i.e at (x , y) = (0,1)

The minimum value is 0 i.e (x , y) = (0,0)

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3 years ago

What is two other forms for 0.253

Lorico [155]

Word form: Two hundred fifty-three thousandths and Fraction Form: 253/1000 Hope this helps you out!

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4 years ago