X^2 - 8x - 9 over x^2 - 1

Answers

Answer 1
Answer:

Factor both equations, you'll get (x-9)(x+1) for the first one and (x+1)(x-1) for the second one.

new equation:  (x-9)(x+1) over (x+1)(x-1). You can cancel out both (x+1)s because  when divided by each other you're left with the number one. The answer is (x-9) over (x-10


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What are the factor pairs of 75??I already did 1 × 75, so...

they need to be multiplication sentences though. for example: 1 × 75 = 75.

:)

Answers

15×5=75 is one factor pair
10x5 would probaly work, i hope i helped.....

What does the abbreviation "m" stand for in math?

Answers

A variable to represent a number that is unknown

If 24 pencils cost $1.20 then how much does one pencil cost?

Answers

Answer:

$0.05

Step-by-step explanation:

1.20 divided by 24

Answer:

The cost is $.05   or 5 cents per pencil

Step-by-step explanation:

Take the cost and divide by the number of pencils

1.20 /24

.05

The cost is $.05   or 5 cents per pencil

Product of a whole number and unit fraction for 3x3/4

Answers

Because all real numbers can be expressed as fractions, whole numbers can be too, with the denominator as 1.

e.g. 3 = 3/1

And then it works like normal multiplication

3/1 x 3/4 = (3 x 3) / (1 x 4)
               = 9/4
               = 2 and 1/4

Also for future reference, normally * (the asterix, shift + 8) is used to show multiplication on a computer, because "x" is normally used in algebra to mean something else.
I believe its 2 and 1/4

The sum of four consecutive integers is -18. What is the greatest of these integers?​

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Answer:

Step-by-step explanation:

The integers are -3,-4,-5, and -6.

-3+ -4+ -5+ -6= -18

Why is 7/8 larger than 3/4 ?

Answers

It is larger because 7/8 is 0.875 and 3/4 is 0.75

It is larger cuz

7/8 - 0.875

3/4 - 0.75