All categories

3 years ago

Which expressions are differences of squares?

2 answers:

8 0

All of them except for the first one are differences of squares. Differences of squares is a form of factoring perfect squares. A 'perfect square' is just a fancy term that basically means you are doubling a number. Like the number 25 you multiply 5x5 to get that number and if you were to take the square root of that number you would also get 5. For it to be differences of two squares you have to have two numbers that if square rooted (in a calculater if you need one) would turn out to be a whole number or 'perfect'.

zzz [600]3 years ago

7 0

Answer:

All are correct but 100s^9-9t^3 this one is incorrect I just took the quiz

You might be interested in

If a car averages 21.8 miles per gallon, how many miles will it travel on 16 gallons of gas?

asambeis [7]

Answer: 348.8 miles on 16 gallons of gas

Step-by-step explanation:

Make the following proportion:

$\frac{21.8 miles}{1 gallon}$ = $\frac{x miles}{16 gallons}$

Since the car consumes gas at the same rate and only the amount of gas is changed, these two fractions must be equivalent. If the rate at which the car consumes gas changes, it would be different.

Use basic algebraic skills and you should get 348.8 miles.

7 0

2 years ago

X^2+2x=24<br> Factor then solve?

Feliz [49]

Answer:

4x equals 24 so x equals 6

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which expression is equivalent to the following complex fraction? StartFraction 1 Over x EndFraction minus StartFraction 1 Over

Darina [25.2K]

Answer:

$\frac{y-x}{x+y}$

Step-by-step explanation:

We are given that fraction

$\frac{\frac{1}{x}-\frac{1}{y}}{\frac{1}{x}+\frac{1}{y}}$

We have to find the expression which is equivalent to given fraction .

$\frac{1}{x}-\frac{1}{y}=\frac{y-x}{xy}$

$\frac{1}{x}+\frac{1}{y}=\frac{x+y}{xy}$

Substitute the values then, we get

$\frac{\frac{y-x}{xy}}{\frac{y+x}{xy}}$

We know that

$\frac{\frac{a}{b}}{\frac{x}{y}}=\frac{a}{b}\times \frac{y}{x}$

Using the property then, we get

$\frac{y-x}{xy}\times \frac{xy}{x+y}$

$\frac{y-x}{x+y}$

This is required expression which is equivalent to given expression.

6 0

3 years ago

Read 2 more answers

Rover has dug 4 holes and put b bones in each hole. He finds 5 more bones. How many bones does Rover have?

raketka [301]

Peyegehjduehebe siege d Irene did defunds djd Duffy dude did did rbrhr ensue he eyebrows rbdudbe dueusudvd disused shdnfbdjd when’d d didn’t shed fdjjdd s

6 0

3 years ago

Read 2 more answers

A submarine dives below the surface heading downward in three moves if each move downward 325 feet where is the submarine after

Lyrx [107]

Answer:

Step-by-step explanation:

The answer would me -975 :)

6 0

3 years ago

Read 2 more answers