2 years ago

How does difference of squares work?

1 answer:

6 0

Every difference of squares problem can be factored as follows: a2 – b2 = (a + b)(a – b) or (a – b)(a + b). So, all you need to do to factor these types of problems is to determine what numbers squares will produce the desired results. Step 3: Determine if the remaining factors can be factored any further.

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What is the justification for step 3 in the solution process

Lorico [155]

This is the answer, hope this helps.

7 0

2 years ago

Average national teachers salaries can be modeled using the equation y=9.25(1.06)^n , where y is the salary in thousands of doll

kiruha [24]

$y=9.25(1.06)^{n}$
Plug in $n$ to find $y$ .
$n$ would be $50$ because $2020-1970=50$ .

Use order of operations to solve.
$y=9.25(1.06)^{50} \\ y=9.25(18.42) \\ y=170.39$

Since $y$ is the salary in thousands, multiply $170.39$ by $1000$ .
$170.39*1000=17039$

A teacher can expect to have about $17,039 as a salary in the year 2020.

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2 years ago

1. Which diagram shows the construction of a 45° angle

Anni [7]

Answer:

The answer is A.

Step-by-step explanation:

I pirnt the picture out and grabbed a ruler and started looking for the answer and If you look at A. with a ruler you can tell that it is a 45° angle.

5 0

2 years ago

What is a quarter of 2770?

pentagon [3]

Answer:

692.5

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Use algebra tiles to solve 5x = 5

Gelneren [198K]

Answer:

Step-by-step explanation:

5x=5

1x=1

x=1

7 0

3 years ago