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Anton [14]
3 years ago
11

prove that there are real numbers a and b such that square root of a + square root of b equals square root of a + b

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

Lets firts mention that the rule presented in the question does not apply for all real numbers

But, we can see that in some cases it might be true.

Let

a = 1

b = 0

√1 + √0  = 1 + 0 = 1

Likewise,

√(1 + 0)  =  √(1) = 1

And we see that the result is the same.

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you can answer 5 math problems in 4 mins how many math problems can you complete in 12 minutes? i need help!!
snow_lady [41]

Answer:

your answer,

you can answer 15 math problems in 12 minutes

8 0
3 years ago
Which equation does an belong from <br> 15=-5 *-3<br> 4--2=6<br> 2 + -5= - 3<br> -3*-4=-12
zavuch27 [327]

Answer:

-3*-4=-12

Step-by-step explanation:

All other equations are correct. However, this equation is false, for when you multiply two negative signs, the answer is always positive:

-3 * -4 = 12

~

8 0
3 years ago
HELPPSOJSUSHHWYAYSYYSYYEHWHWHS​
OlgaM077 [116]

Answer:

1. (-4, 1)

2. I substituted (y = x + 5) into (3x + y = -11) first before substituting the value of x into (y = x + 5) to find the value of y.

Step-by-step explanation:

Substitute y = x + 5 into 3x + y = -11:

3x + y = -11

3x + x + 5 = -11

4x + 5 = -11

4x = -11 - 5

    = -16

x = -16 ÷ 4

x = -4

Substitute x = 4 into y = x + 5:

y = x + 5

y = -4 + 5

y = 1

A coordinate point is written like this: (x, y)

Thus, the final answer is: (-4, 1)

4 0
3 years ago
Wrapping paper is on sale at 3 rolls for $4.25. How many rolls can Danika buy with $20?
Helga [31]

Answer:

He could buy 4 rolls. With a left over of $3. That 3 dollars cannot buy one more since it is not enough. 4.25 x 4 = 17.00

Step-by-step explanation:


5 0
4 years ago
Read 2 more answers
Help please :(
MissTica

Answer:

D

Step-by-step explanation:

The change from x = 0 to x = 1 is -3

The change from x = 1 to x = 2 is -5

The average of -3 and -5 is \frac{-3-5}{2} = \frac{-8}{2}  = -4

The answer is D. -4

7 0
3 years ago
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