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2 years ago

What's a rule that could be used to simply the square of any square root of a number?

Mathematics

1 answer:

velikii [3]2 years ago

3 0

Answer:

Step-by-step explanation:

The squaring function x^2 and the square root function √x are inverses of one another. Because of this, the square of the square root of a number is the number itself: [√x]^2; this is identical to √[ x^(1/2) ]^2 = x^(2/2) = x^1.

If we are given the square root of a number, then the number itself is the square of the given square root.

Example: Given x with the info that x is the square root of a number, then the square of that x is x^2.

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Rewrite the quadratic function in vertex form.<br> Y=2x^2+4x-1

Fantom [35]

Answer:

$\large\boxed{y=2(x+1)^2-3}$

Step-by-step explanation:

The vertex form of an equation of a parabola:

$y=a(x-h)^2+k$

(h, k) - vertex

We have

$y=2x^2+4x-1=2\left(x^2+2x-\dfrac{1}{2}\right)$

We must use the formula: $(a+b)^2=a^2+2ab+b^2\qquad(*)$

$2\left(x^2+2(x)(1)-\dfrac{1}{2}\right)=2\bigg(\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-\dfrac{1}{2}\bigg)\\\\=2\left((x+1)^2-1-\dfrac{1}{2}\right)=2\left((x+1)^2-\dfrac{3}{2}\right)$

Use the distributive formula a(b + c) = ab + ac

$2(x+1)^2+2\left(-\dfrac{3}{2}\right)=2(x+1)^2-3$

5 0

2 years ago

H (x)=x^2-5<br> Find h (-7)

nalin [4]

H (-7) = (-7)^2 -5 = 49-5 = 44

3 0

3 years ago

Read 2 more answers

Write 0.33 as a fraction in simplest form

Georgia [21]

33/100
this is the simplest form
tnx
hope i hepled you

6 0

2 years ago

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Help me please giving brainiest

Setler79 [48]

Answer:

1) The most common place (mode) for people to jog is the path.

2) (The picture)

Step-by-step explanation:

1) The mode means what is most common, and since the path has 22 people, it is the most common place.

2) The data is distributed into 5 different columns based on how many people use the certain column. The second column is the mode and most common spot to jog.

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2 years ago

HELP asap pls, first right=brainliest

Sergeeva-Olga [200]

Answer:

Your answer would be A:12

Step-by-step explanation:

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2 years ago