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2 years ago

Which expression is equal to 0 when simplified?

Mathematics

1 answer:

aksik [14]2 years ago

6 0

The answer is A) 2n-3m-(2n+3m)

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On the coordinate grid of a map. Jeff's house is located at (9,5). Hannah's house is at (-5,-5). Kenya's house is located at the

Andru [333]

The midpoint formula is $\frac{ x_{1} + x_{2} }{2}, \frac{ y_{1}+ y_{2} }{2}$
So just plug in the corresponding coordinates in the correct place to get the midpoint.
x_1=-5 ; x_2=9 ; y_1=-5 ; y_2=5
((-5 + 9)/2 , (-5 + 5)/2)
(4/2 , 0/2)
(2,0) is where Kenya's house is(which is the midpoint).

The distance formula is a bit more complicated than that. The distance formula is D= $\sqrt{({y_{2}- y_{1} }^{2}) + ({ x_{2}- x_{1}}^{2} ) }$
In this case now, your looking for the distance from Hannah's house to Kenya's house.
D= $\sqrt{(-5-2)^{2} + (-5-0)^{2} }$
= $\sqrt{49+25}$
= $\sqrt{74}$ ≈8.6023

8 0

2 years ago

Read 2 more answers

5*10^5 is how many times bigger that 1*10^5

weqwewe [10]

Answer:

Step-by-step explanation:

5*10^5=500000 and 1*10^5=100000

6 0

2 years ago

Create and solve a system of equations and solve for x and y.

Helga [31]

Answer:

Step-by-step explanation: x+4-5=y

8 0

2 years ago

Type the correct answer in each box. If necessary, use / for the fraction bar(s).

spayn [35]

Answer:X=5/6 Y=8/5

Step-by-step explanation:

-6x +5y=3

+6x

5y=6x+3 (divide each number by 5)

Y=6/5x + 3/5 (Plug that into your x equation)

12x+15 (6/5x + 3/5) =34

(Multiply 15 by the numbers in the brackets you can break it down and do 15•6 divided by 5 )

15•6=90 divided by 5=18x

15•3= 45 divided by 5=9

(Add like variables)

12x+18x=30x

30x+9=34

(Subtract 9 from itself do the same to 34)

9-9= 0

34-9=25

Divide 30 by itself to get x by itself then divide 25 by 30

25 divided by 30= 5/6

X=5/6 (plug that into the y equation)

Y=6/5•5/6+3/5

Multiply 6/5 and 5/6 straight across because this is multiplication you don't need like denominators

6/5•5/6=30/30=1

Y=1+3/5

1/1 + 3/5

Here you need to have like denominators because it is addition so just use 5

5•1=5

5/5+3/5=8/5

Y=8/5

5 0

2 years ago

What are the equivalent fractions with a common denominator for 2/5 and 1/2?

Svetlanka [38]

So 1/2 is 5/10 and 2/5 is 4/10 common denonominator is 10 ( i think )

4 0

2 years ago

Read 2 more answers