All categories

3 years ago

(-64)^(1/2) evaluated?

Mathematics

2 answers:

nikitadnepr [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Simplify the expression.

Rewrite 64 as 8^2

Apply the power rule and multiply exponents, (am^)n = a^mn

8^2(1/2)

Cancel the common factor of 2

Rewrite the expression.

8^1

Evaluate the exponent.

Hope that helps!

bazaltina [42]3 years ago

3 0

Answer:

Step-by-step explanation:

When a quantity is raised to a fractional power, you need to root it to the power of the denominator.

For example, (-64)^(1/2) = √(-64) 

Since you are taking the root of a negative, you will need to put an i (imaginary) in your answer.

You might be interested in

What are the points of discontinuity for y=x^2+3/x^2+2

mr Goodwill [35]

I don;t think there area any points of discontinuity on this graph.

5 0

3 years ago

Find the surface area. 5 cm 14 cm 9 cm 3 cm

notsponge [240]

Answer:C. 2/3 cm/s

Step-by-step explanation:

3 0

2 years ago

What is the Area and Perimeter for tbe rectangle?

Amanda [17]

<h2>Given :-</h2>

length of rectangle = ( 4n-5 )

breadth of rectangle = ( 3n-2)

Area and perimeter of rectangle.

<h2>solution :-</h2>

by the question ,

We know the area of rectangle = length × breadth

Area = (4n -5) (3n-2)

$= {12n}^{2} - 8n - 15n + 10$

$= {12n}^{2} - 23n + 10$

now ,

perimeter = 2 ( length + breadth (

= 2 ( 4n-5 + 3n-2)

= 2 ( 7n-7)

= 14n -14

I hopes this helps.

3 0

2 years ago

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4= 0 for x?

andre [41]

Answer:

2(5) because the irrational swaps the 5

Step-by-step explanation:

6 0

3 years ago

Please help!!

Varvara68 [4.7K]

Answer:

n2−225

t2−1

Step-by-step explanation:

Alright let's get it!

(WHOOP! WHOOP! WHOOP! WHOOP!)

First let's start with:

How can the difference of squares be written?

a^2 − b^2

This will be our friend for a while!!!

STEP 1:

Now let's start with the first problem:

t^2 − 1

It can be rewritten as,

t^2 − 1^2

Therefore choice 1 works!

STEP 2:

Next one:

p^2 − 40

The number 40 is not a complete square of any number, therefore choice 2 is not correct.

STEP 3:

Almost there!

n^2 − 225

It can be rewritten as,

n^2 − (15)^2

It is the difference of squares, therefore choice 3 is correct!!!

STEP 4:

Last one!!!!!

k^2 + 81

It can be written as,

k^2 + 9^2

It is the sum of squares, therefore the last choice is incorrect.

So......

The correct ones are:

n2−225

t2−1

Yassss, we survived!

So happy we got to do this together!

Hope this helps!!!

8 0

3 years ago