All categories

3 years ago

Which expression is equivalent to x−2y ?

Mathematics

2 answers:

Stels [109]3 years ago

8 0

Answer:

x+2y+x+2

=2x+2y+2

=2(x+y+1)

Step-by-step explanation:

i hope its right

Tresset [83]3 years ago

3 0

Answer:

-2y+x

Step-by-step explanation:

x-2y

-2y+x

You might be interested in

What fraction of the game spinner is red? right to equivalent fractions.

klasskru [66]

From what I can see from the black and white looking picture, try 2/8 :)

7 0

3 years ago

Read 2 more answers

Factor completely 3X^2 -25

Dominik [7]

In order to factor a polynomial, you have to find its roots

$x_1,\ x_2,\ldots,x_n$

So that you can factor it as

$p(x)=(x-x_1)(x-x_2)\cdots(x-x_n)$

So, in this case, we're looking for the solutions of

$3x^2-25=0 \iff 3x^2=25 \iff x^2 = \dfrac{25}{3} \iff x=\pm\sqrt{\dfrac{25}{3}}=\pm\dfrac{5}{\sqrt{3}}$

So, the polynomial can be written as

$3x^2-25 = \left(x-\dfrac{5}{\sqrt{3}}\right)\left(x+\dfrac{5}{\sqrt{3}}\right)$

5 0

3 years ago

If £25 = 750 rubles, how many £ are in 780 rubles?

-Dominant- [34]

Answer:

Step-by-step explanation:

25/750=0.033333

0.033333x780=26

8 0

3 years ago

Find the volume of the pet carrier shown at the right

cluponka [151]

Answer:

Volume of the pet carrier $=2702.5$ cubic inches

Step-by-step explanation:

The Pet carrier in the image is in the shape of a cuboid

The volume of a cuboid can be found by the formula

volume of cuboid= $Length*Breadth*Height$

Given:

Length = 20 inches, Breadth= $11\frac{3}{4} =\frac{(11*4)+3}{4}=\frac{47}{4}$ inches,

Height= $11\frac{1}{2}=\frac{23}{2}$ inches

Volume of the pet carrier:

$=20*\frac{47}{4}* \frac{23}{2}\\\\= 5*47*\frac{23}{2} \\\\=5*47*11.5\\$

$=2702.5$ cubic inches

Volume of the pet carrier $=2702.5$ cubic inches

4 0

3 years ago

15 points! The data set shows the weights of pumpkins, in pounds, that are chosen for a photograph in a farming magazine. The re

vladimir2022 [97]

Answer:

Step-by-step explanation:

a). Mean of the given data set = $\frac{32+28+18+40+22}{5}$

= 28

b). x $x-\overline{x}$ $(x-\overline{x})^2$

32 32-28 = 4 16

28 28 - 28 = 0 0

18 18 - 28 = -10 100

40 40 - 28 = 12 144

22 22 - 28 = -6 36

$\sum({x-\overline x})^2$ = 296

c). Standard deviation = $\sqrt{\frac{\sum (x-\overline{x})^2}{n}}$

= $\sqrt{\frac{296}{5} }$

= 7.69

d). Mean of the new set of weights = $\frac{32+33+34+35+36}{5}$

= 34

Since mean of the data set is more close to each data, standard deviation will be less than the deviation given in part (c).

7 0

3 years ago