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2 years ago

3x + y = 5 2x - 2y = -2

Mathematics

2 answers:

zalisa [80]2 years ago

8 0

Answer:

y =5-3x

and

Step-by-step explanation:

<u>First question</u>

Subtract 3 x from both sides of the equation

Vesnalui [34]2 years ago

7 0

Answer:

Solving the system of equations:

x: 1

y: 2

Step-by-step explanation:

Plug it in to see if it is right, to make sure of course. Better to be safe than sorry.

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Step-by-step explanation:

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2 years ago

A bookcase measures 13 feet wide and 24 feet tall wat wood the bookcases measurements be on the scale drawing using the scale 3c

antiseptic1488 [7]

Find out what 1 Foot per centimeter is (1.5 centimeters per foot)
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3 years ago

A librarian arranged some books on the shelf using the Dewey decimal system. Choose the group of book numbers that is listed in

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3 years ago

Please help me with this

Cerrena [4.2K]

Answer:

Yes;Each side of triangle PQR is the same length as the corresponding side of triangle STU

Step-by-step explanation:

You can observe the sides of both triangles to see if this property holds

Lets check the length of AB

A(0,3) and B(0,-1)

$AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\\\\\\AB=\sqrt{(0-0)^2+(-1-3)^2} \\\\\\\\AB=\sqrt{0^2+-4^2} \\\\\\AB=\sqrt{16} =4units$

Now check the length of the corresponding side DE

D(1,2) and E(1,-2)

$DE=\sqrt{(1-1)^2+(-2-2)^2} \\\\\\DE=\sqrt{0^2+-4^2} \\\\\\DE=\sqrt{16} =4units$

The side AB has the same length as side DE.This is also true for the remaining corresponding sides.

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3 years ago

Please please help me I need help Ill give brainy please help

zzz [600]

Answer:

45 cm

Step-by-step explanation:

$l=\sqrt{r^2+h^2}=\sqrt{27^2+36^2} =45 cm$

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2 years ago