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Genrish500 [490]

3 years ago

5

The perimeter of the rectangle is 28 units.

2 answers:

riadik2000 [5.3K]3 years ago

7 0

Answer:

7 units

Step-by-step explanation:

LenaWriter [7]3 years ago

3 0

7 units is the value

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Hey guys please help with this questoin Find (x+y) ÷ (x-y) if x=5/4 y=-1/3

pogonyaev

Answer:

<h2>11/19</h2>

Step-by-step explanation:

$(\frac{5}{4} + (-\frac{1}{3})) \div (\frac{5}{4} - (-\frac{1}{3}))\\\\\frac{\frac{5}{4}+\left(-\frac{1}{3}\right)}{\frac{5}{4}-\left(-\frac{1}{3}\right)}\\\\\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a,\:-\left(-a\right)=a\\=\frac{\frac{5}{4}-\frac{1}{3}}{\frac{5}{4}+\frac{1}{3}}\\\\\mathrm{Join}\:\frac{5}{4}+\frac{1}{3}:\quad \frac{19}{12}\\\mathrm{Join}\:\frac{5}{4}-\frac{1}{3}:\quad \frac{11}{12}\\\\=\frac{\frac{11}{12}}{\frac{19}{12}}\\\\=\frac{11\times\:12}{12\times \:19}$

= 11/19

7 0

4 years ago

Solve the system using a matrix.

zheka24 [161]

Answer:

using Gaussian elimination method of matrix

4 0

3 years ago

Lesechka [4]

Answer:

55.5

Step-by-step explanation:

6 0

3 years ago

Identify if the answers are greater than, less than, or equal to the last fraction. Write > for greater than, < for less t

svet-max [94.6K]

Answer:

express the followibg as a fraction and a rational number 10 to 12

5 0

2 years ago

Read 2 more answers

If ƒ(x) = 2x, then ƒ -1(x) =<br><br> -2x<br> ½x<br> x - 2

kap26 [50]

Answer: second option

Step-by-step explanation:

To find the inverse function of the given function f(x):

$f(x)=2x$

You need to:

Substitute $f(x)=y$ into the function:

$y=2x$

Now, you need to solve for "x", to do this, you must divide both sides of the function by 2:

$\frac{y}{2}=\frac{2x}{2}\\\\\frac{y}{2}=x$

Now, replace "x" with "y" and replace "y" with "x":

$\frac{x}{2}=y$

Therefore, substituting $y=f^{-1}(x)$ you get:

$f^{-1}(x)=\frac{x}{2}$ or $f^{-1}(x)=\frac{1}{2}x$

7 0

3 years ago