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Blizzard [7]
2 years ago
8

If a=x+y and b=x-y show that (a+b)2=4x2​

Mathematics
1 answer:
Tema [17]2 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

a + b = x + y + x - y = 2x , then

(a + b)² = (2x)² = 4x² ← as required

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Can someone help me please
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26/100 or simplified to 13/50
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3 years ago
The system of equations y = negative one-half x + 4 and y = 2x – 1 is shown on the graph below. According to the graph, what is
dimaraw [331]

Answer:

(2, 3 )

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

point of intersection = (2, 3 ) ← is the solution

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4 years ago
Which scatterplot does NOT suggest a linear relationship between x and y. Look AT IMAGE
Afina-wow [57]

Answer:

Graph C

Step-by-step explanation:

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7 0
3 years ago
What is 5.316 - 1.942 (show ur work) Thanks
KATRIN_1 [288]
Answer: 3.374

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Hope this helps :)
4 0
2 years ago
Read 2 more answers
Variable c is 5 more than variable
shutvik [7]
First, let us restate the given conditions

c is 5 more than variable a ( c = a + 5)
c is also three less than variable a (c = a - 3)

Now, lets look at the answer choices and or given
c = a − 5 
c = a + 3
Here, c is 5 less than "a"...so automatically disqualified

a = c + 5
a = 3c − 3 
Here, we have to get "C" by itself in both top and bottom equation.
So,
Simplified version :
c = a - 5
Here, c is 5 less than "a"...so automatically disqualified


a = c − 5
a = 3c + 3
Here also, we have to get "C" by itself in both top and bottom equation.
So, 
simplified version:
c = a + 5
Here, c is 5 more than "a"...so we continue
c = (a - 3) / 3
Here, c is 3 less than "a" <u>divided by 3</u><u /> . So, this is not correct

c = a + 5
c = a − 3
Here, c is 5 more than "A"
Also, c is 3 less than "a"
Which satisfies the given.

 So, our answer is going to be the last one:
 
 c = a + 5
 c = a - 3
7 0
3 years ago
Read 2 more answers
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