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Thepotemich [5.8K]
3 years ago
7

Find the product mentally. [(x + 1)(x - 1)]2

Mathematics
2 answers:
Troyanec [42]3 years ago
7 0
(x+1)(x−1)(2) =2x^2−2
VARVARA [1.3K]3 years ago
6 0
[(x+1)(x-1)]2 = (x*x + -x + x + -1)2 = (x^2 - 1)2. This should be the simplest form.

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michelle bought the same fabric on 3 different occasions and recorded the data below what was the price per yard of fabric? answ
bazaltina [42]

Please consider the complete question.

Michelle bought the same fabric on 3 different occasions and recorded the data below.

Yards of Fabric         Total Cost

2.2                             $2.53

3.6                             $4.14

4.2                             $4.83

What was the price per yard of fabric?

To find the cost per yard of fabric, we will divide cost of yards by number of yards.

\text{Cost per yard}=\frac{\text{Cost}}{\text{Number of yards}}

\text{Cost per yard}=\frac{\$2.53}{2.2\text{ yards}}

\text{Cost per yard}=\frac{\$1.15}{\text{ yard}}

Let us find cost per yard using 2nd set of data.

\text{Cost per yard}=\frac{\$4.14}{3.6\text{ yards}}

\text{Cost per yard}=\frac{\$1.15}{\text{ yard}}

Similarly we will find cost per yard for 3rd set of data.

\text{Cost per yard}=\frac{\$4.83}{4.2\text{ yards}}

\text{Cost per yard}=\frac{\$1.15}{\text{ yard}}

Therefore, the cost per yard of fabric is $1.15.

4 0
3 years ago
Each student ticket for an art museum costs $12.50. the total cost for student tickets, t, varies directly as the number of tick
Troyanec [42]

An equation that models the proportional relationship between t and s.

t = 12.5s

<h3>What is proportional relationship?</h3>

Relationships between two variables where their ratios are equal are known as proportional relationships. The fact that one variable is always a constant value multiplied by the other in a proportionate connection is another way to conceive of them. This parameter is referred to as the "constant of proportionality."

<h3>According to the given information :</h3>

1) Ticket for an art museum costs $12.50

2) In other words, the price will increase by $12.50 for each ticket purchased (or tickets).

In other words, the total expense is always 12.5 times the quantity of tickets sold.

3) This indicates that we can create this ---> t = 12.5s.

An equation that models the proportional relationship between t and s.

t = 12.5s

To know more about proportional relationship visit:

brainly.com/question/12022244

#SPJ4

6 0
1 year ago
Potato cause 0.32 per pound how much does 0.75 pounds of sweet potatoes cost
Semmy [17]
Answer: .24


You get this by multiplying .75 by .32 or by dividing .32 by four and multiplying by 3
5 0
3 years ago
1/2 cup of black beans provides 15% of the potassium you need daily you must get the remaining 2890 mg from another source how m
Alex787 [66]
3323.5 because if you times the number left by the 15 percent this is the answer.

3 0
3 years ago
These are numbers with more than two factors. *
maxonik [38]

Answer: A

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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