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masya89 [10]
3 years ago
13

Explain why every positive number has two square roots

Mathematics
1 answer:
sasho [114]3 years ago
4 0
Let's explain this by using an example. Let's take the square root of 4.
sqrt(4)
You'd think the answer is 2, and you are correct, but the answer is also -2.
Remember that a square root means that the two numbers must be the same, and multiply back up to 4. In this case, the number is 2.
2•2=4
BUT
-2•-2 ALSO =4
therefore there are two square roots...
2 is a square root
AND
-2 is a square root.
This goes with all positive numbers!


I hope this helps! Best wishes :)
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Please please help me out!!!!!!!!!
anyanavicka [17]

Answer:

y = \frac{3}{4} x + \frac{1}{4}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, - 2) and (x₂, y₂ ) = (5, 4) ← 2 points on the line

m = \frac{4+2}{5+3} = \frac{6}{8} = \frac{3}{4}, thus

y = \frac{3}{4} x + c ← is the partial equation of the line

To find c substitute either of the 2 points into the partial equation

Using (5, 4), then

4 = \frac{15}{4} + c ⇒ c = 4 - \frac{15}{4} = \frac{1}{4}

y = \frac{3}{4} x + \frac{1}{4} ← equation of line

8 0
4 years ago
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Rina8888 [55]
3/8 should be your answer !!!
5 0
3 years ago
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Someone please help and make sure it’s right please :)
tester [92]

Answer:

2

Step-by-step explanation:

28x - 1 = 27x + 1 (being alternate angles)

28x - 27x = 1 + 1

x = 2

Hope it will help :)

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3 years ago
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HELP ME WITH THIS PLEASEEEE
yKpoI14uk [10]

Answer:

its the first one corresponding angles

6 0
3 years ago
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he value of y varies directly with the value of x. When y = 32.5, x = 5. What is the value of y when x = 10? A) 1.5 B) 2.2 C) 37
xz_007 [3.2K]

Answer:

D) 65

Step-by-step explanation:

The formula for direct variation is

y = kx

where k is the constant of variation.


If we know y=32.5 and x=5, we can substitute in to calculate k

32.5 = k * 5

Divide each side by 5

32.5/5 = k

6.5 = k

So the equation is

y = 6.5k

Given x =10

y = 6.5*10

y = 65

7 0
4 years ago
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