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GenaCL600 [577]
3 years ago
11

If a^1/2 + b^1/2 - c^1/2= 0 Find (a+b-c)^2

Mathematics
1 answer:
Vitek1552 [10]3 years ago
5 0

a½+b½-c½=0

a½+b½=c½

Squaring on both sides,

(a½+b½) ²=c½×²

a+b+2a½b½=c

a+b-c= -2a½b½

Again squaring on both sides,

(a+b-c) ²=(-2a½b½) ²

= 4ab.

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3 years ago
Help please I need this in less than 2 mins
Masja [62]

Answer:

4 - 3j

Step-by-step explanation:

4 0
3 years ago
What is HCF and LCM ? # confused
GaryK [48]
HCF= highest common factor
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7 0
3 years ago
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A restaurant offers three sizes of coffee and four differerſt types of coffee.
Kruka [31]
<h3>Answer:  864</h3>

=======================================================

Work Shown:

There are,

  • 3 sizes of coffee
  • 4 types of coffee
  • 2 choices for cream (you pick it or you leave it out)
  • 2 choices for sugar (same idea as the cream)

This means there are 3*4*2*2 = 12*4 = 48 different coffees. We'll use this value later, so let A = 48.

There are 6 bagel options. Also, there are 3 choices in terms of if you order the bagel plain, with butter, or with cream cheese. This leads to 6*3 = 18 different ways to order a bagel. Let B = 18.

Multiply the values of A and B to get the final answer

A*B = 48*18 = 864

There are 864 ways to order a coffee and bagel at this restaurant.

--------------

If you're curious why you multiply the values out, consider this smaller example.

Let's say you had 3 choices of coffee and 2 choices for a bagel. Form a table with 3 rows and 2 columns. Place the different coffee choices along the left to form each row. Along the top, we'll have the two different bagel choices (one for each column).

This 3 by 2 table leads to 3*2 = 6 individual table cells inside. Each cell in the table represents a coffee+bagel combo. This idea is applied to the section above, but we have a lot more options.

3 0
3 years ago
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Answer:

umm km / nk

Step-by-step explanation:

I DONT know if this is right...…can u  plz mark me brainiest? I really need it!!!!

7 0
3 years ago
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