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ryzh [129]
3 years ago
15

Trình bày khái niệm và cách giải phương trình bậc nhất 1 ẩn, hệ phương trình bậc nhất 2 ẩn

Mathematics
1 answer:
AysviL [449]3 years ago
8 0
English please.......,.
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What is the solution to the equations x^2-2x+y=8 and x-y=-2
kherson [118]
Hello!!

For the first equation:

-2x + x^2 + y = 8   (Solve for y)

y = -x^2 + 2x +8

For the second equation:

x - y = -2   (Solve for y)

-y = -x - 2

-y = x + 2

Good luck :)

6 0
4 years ago
mr farmer rectangular land measures 2000 meters by 3000 meters. if he walks around the perimeter of his land, how far does he wa
Travka [436]

Answer:

10000 meters

Step-by-step explanation

To find perimeter you add the length of each side of the shape. Since the land is a rectangle there are two pairs that are parrallel, being 2000 and 3000. Making the distance 2000 + 2000 + 3000+ 3000 = 10000

Hope this helps!

4 0
3 years ago
What is the value of the expression? -2/5 - 3/7 * 7/10 =
mash [69]
Order of operations
PEMDAS
parenthasees
exponents
multipication or division whichever comes first
addition or subtraction whichere comes first

first muliplication
-3/7 times 7/10=-21/70=-3/10

then we have
-2/5-3/10
make bottom number 10
-2/5=-4/10
-4/10-3/10=-7/10


answer is A
5 0
3 years ago
Read 2 more answers
Do You Know How?
Deffense [45]

Answer:

y = -3x +8

Step-by-step explanation:

The slope intercept form intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

The slope is -3 and the intercept is 8

y = -3x +8

4 0
3 years ago
Read 2 more answers
Which number line correctly shows -3 - -1.5?
Ray Of Light [21]
I’m sorry if it’s wrong but I think it’s the 1st option.

Because -3 - 1.5 = -4.5 and on the number line that’s the only one that goes in the direction of -4
6 0
3 years ago
Read 2 more answers
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