Aratati ca numarul A=ab+ba-aa-bb este patrat perfect ( deasupra la ab ba aa bb este o linie orizontala) b)determinati nr ab astfel incat B=ab+5ab-126 sa fie patrat perfect ( deasupra la ab 5ab este o linie orizontala) c) aratati ca 25=3²+4² si 625=7²+24²

Step-by-step explanation:

english?

5 0

4 years ago

Y=2x-3<br> --<br> How do you graph this

Debora [2.8K]

Answer:

y = 2x - 3

To plot a graph

you need at least one coordinate and slope

2 coordinates

y = 2x -3

By Comparing with General Equation of a line that is y = mx + c

Here m represents slope

and c is y intercept

which inturn results in m = 2 , c = -3

c = -3

So Coordinate is (0,-3)

Plot (0,-3)

Take a line having slope 2

Then you can plot it

8 0

3 years ago

A water tank is 5/6 full. When 30 litres of water are removed from the tank, the tank is 4/5 full. How much water does the tank

Archy [21]

Answer:

900 L

Step-by-step explanation:

Let x be the number of litres when the tank is full.

Then 5/6 x - 30 = 4/5 x

Solve this by converting to /30:

25/30 x - 30 = 24/30 x

1/30 x = 30

x = 30*30 = 900

6 0

3 years ago