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KonstantinChe [14]
3 years ago
9

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

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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:

26

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
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