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2 years ago

What step should be completed first to solve a problem brainly

SAT

1 answer:

kap26 [50]2 years ago

5 0

Explanation:

the correct answer is recognizing and identifying the problem

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How can you test a water source to see whether it is acidic or not

podryga [215]

Answer:

The easiest way to test if water is acidic is to use litmus paper. Litmus paper is a paper that contains special dyes that will change color when exposed to acids or bases. In your case, if you dip blue litmus paper into water samples and it turns pink or red, then the water is acidic.

5 0

3 years ago

Read 2 more answers

(5372 + 100y^2) + 5(10y^2 – 110) Add the two polynomials and write in the form ay^2 + b, where a and b are constants, What is th

dangina [55]

Answer:

The value of a is 150 and b is 4822.

Explanation:

First, you have to expand to remove brackets :

$(5372 + 100 {y}^{2} ) + 5(10 {y}^{2} - 110)$

$= 5372 + 100 {y}^{2} + 50 {y}^{2} - 550$

Next, you have to simplify :

$100 {y}^{2} + 50 {y}^{2} + 5372 - 550$

$= 150 {y}^{2} + 4822$

Next, you have to compare it :

$a {y}^{2} + b = 150 {y}^{2} + 4822$

$a = 150$

$b = 4822$

5 0

3 years ago

In a recent television survey, participants were asked to answer ʺyesʺ or ʺnoʺ to the question ʺAre you in favor of the death pe

Vlada [557]

Answer:

A) stratified

Explanation:

Total call including 6500 'yes' and 4100 'no' are 10600 and on each call there was a fifty cent charge. Total charge becomes 5300 $ so this is very straight forward data. And from this test two types of classes are made with cleared population in each class and such cleared population division is example of stratified sampling so this is right answer.

7 0

3 years ago

Read 2 more answers

John has always had a tendency to lie. He does not feel remorse for his wrongdoings. He fails to show sympathy and compassion to

nasty-shy [4]

John is a B.passionate criminal because he lies just for the heck of it. Hope i helped.

3 0

2 years ago

Read 2 more answers

Which expression can be simplified to find the slope of the line of best-fit in the scatterplot below?

malfutka [58]

$\frac{134-35}{16-4}$ is the correct answer and this expression can be simplified to find the slope of the line of best-fit in the scatterplot below by using the the slope equation : $\frac{Y_{2} - Y_{1}}{X_{2} - X_{1}}$ .

What is Slope of the Line?

The slope of the line is the measure of its steepness and direction. Without using a compass, determining the slope of lines in a coordinate plane can help predict whether the lines are parallel, perpendicular, or none at all.

Any two distinct points on a line can be used to calculate the slope of that line. The slope of a line formula computes the "vertical change" to "horizontal change" ratio between two distinct points on a line. In this article, we will learn about the slope-finding method and its applications.

To know more about Slope of the Line, visit: brainly.com/question/18240977

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6 0

1 year ago