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maria [59]
3 years ago
10

What is the wright answer

Mathematics
1 answer:
Kryger [21]3 years ago
5 0
Yep they’re equivalent
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Prove that x-y = √(x+y)^2-4xy?
Svetlanka [38]

Proved Below

\Longrightarrow x-y = \sqrt{(x+y)^2-4xy}

\Longrightarrow x-y = \sqrt{x^2+2(x)(y)+ y^2-4xy}

\Longrightarrow   x-y = \sqrt{x^2+2xy-4xy+y^2}

\Longrightarrow x-y = \sqrt{x^2-2xy+y^2}

\Longrightarrow x-y = \sqrt{(x-y)^2}

\Longrightarrow x-y =x-y

6 0
2 years ago
Read 2 more answers
Negative 3 over 4 t equals 5
tatuchka [14]

Answer:

5645

Step-by-step explanation:

hsususikzz577sss8d0d8x s9s72383 333rd St. east St. Louis 83inches 2is 2273

4 0
3 years ago
Please help me out!!!!
svetoff [14.1K]

Answer:

b= 70

Step-by-step explanation:

The sum of the opposite interior angles of a triangle is equal to exterior angle.

a+b = 140

We know that a = b since PQ = RQ  The angles opposite the equal sides in an isosceles triangle are equal

b+b = 140

2b =140

Divide by 2

2b/2 =140/2

b= 70


6 0
3 years ago
The sum of two integers is 61 and their difference is 1. Find the integers.
musickatia [10]

We can find this integer using a system of equations.  The first thing we look at is the first sentence.

Let's call X The first integer,

Let's call Y the second integer.


So, X+Y=61 and X-Y= 1


Using Substituion on the second equation, we get

X=Y+1

(Now we plug in Y+1 into the second equation for X)

So,

(Y+1)+Y=61

2Y=60

Y=30

So, one of the integers is 30.

Now to find the second, we go back to

X=Y+1

X=30+1

X=31.


So, the integers are 31 and 30.


Hope this helps!

7 0
3 years ago
How much will you have to pay back in total if you borrowed $400 from the bank for a year at 12%
vodka [1.7K]
1) figure out interest amount

400x.12= 48

2) add interest and loan amount

400+48= 448
3 0
2 years ago
Read 2 more answers
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