MATHEMATICS MIDDLE SCHOOL

Which is equivalent to (−2m + 5n)², and what type of special product is it?A. 4m² + 25n²; a perfect square trinomial
B. 4m² + 25n²; the difference of squares
C. 4m² − 20mn + 25n²; a perfect square trinomial
D. 4m² − 20mn + 25n²; the difference of squares

Answers

Answer 1
Answer: (-2m + 5n)²

(-2m + 5n) (-2m + 5n)
-2m(-2m + 5n) + 5n(-2m + 5n)

4m² - 10mn - 10mn + 25n²
4m² - 20mn + 25n²

4m²⇒ -2m * -2m
-20mn ⇒ 2(-2m)(5n)
25n² ⇒ 5n * 5n

C. 4m² − 20mn + 25n²; a perfect square trinomial

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Match the vocabulary word to its correct definition.1. absolute value
2. continuous function
3. step function
4. piecewise-defined function

function whose graph consists of horizontal line segments

function defined on different intervals by different domain rules

function whose graph has no breaks

function whose output equals input for non-negative numbers, and whose output is the opposite of a negative input

Answers

Answer:

1. Absolute value: function whose output equals input for non-negative numbers, and whose output is the opposite of a negative input

2. Continuous function: function whose graph has no breaks

3. Step function: function whose graph consists of horizontal line segments

4. Piecewise-defined function: function defined on different intervals by different domain rules

Step-by-step explanation:

Answer:

Step-by-step explanation:Absolute value: function whose output equals input for non-negative numbers, and whose output is the opposite of a negative input

2. Continuous function: function whose graph has no breaks

3. Step function: function whose graph consists of horizontal line segments

4. Piecewise-defined function: function defined on different intervals by different domain rules

The Rodriguez family dined at a restaurant. Their bill came to $119, but they also have to pay a 9% tax and they plan to leave a tip of 22%. Which is a reasonable estimate of the total amount they will pay?
$121
$132
$144
$156

Answers

The total amount they will pay $156. Therefore, option D is the correct answer.

Given that, the bill at the restaurant=$119, tax=9% and tip=22%.

How to calculate the percentage of a number?

How to calculate the percentage of a number. Use the percentageformula: P% * X = Y · Convert the problem to an equation using the percentageformula: P% * X = Y.

Now, the total percentage they paid extra=9+22=31%.

So, 119+31% of 119=119+36.89

=155.89≈$156

Therefore, option D is the correct answer.

To learn more about the percentage visit:

brainly.com/question/13450942.

#SPJ6

119  * .09 = 10.71

119+10.71= 129.71

129.71 * .22 = 28.54

129.71+28.54= 158.25

the answer closest to this is $156, so that is your answer.

What's the square root of 100?

Answers

10 hope it helps you out
Ten hope this help.

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Answers

For this case we have the following numbers:

299

388

Let's round up each of the numbers to the nearest hundred,

We have then:

299 = 300

388 = 400

We note that now we have two numbers whose approximation is easier to add.

We have then:

300 + 400 = 700

Answer:

The sum of 299 + 388 is approximately:

700
An estimate of the sum 299 + 388 would be 300 + 400. The answer is therefore around 700.

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Answers

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Answer= Grid D
Because when the line crosses on 2 (y-axis) it only goes right (x-axis)1 time. Also when it crosses on 4 (y-axis) it goes 2 steps to the right (x-axis). I hope it helped.

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Answers

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