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Ede4ka [16]
4 years ago
7

What is 4.2X-1.4Y=2.1-2X

Mathematics
2 answers:
enot [183]4 years ago
7 0

4.2x - 1.4y = 2.1 - 2x

Subtract 4.2x

-1.4y = 2.1 - 6.2x

Divide by -1.4

y = -3/2 + 9/2x

Answer: y = 9/2x - 3/2

Rina8888 [55]4 years ago
6 0
In this problem, we have to solve for y.
So:
After subtracting 4.2x and dividing -1.4; you get this:
y = 9/2x - 3/2

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strojnjashka [21]
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| 1 0 |
| 0 1 |

A simple method would be using a calculator to solve for this. You can input the values of one matrix, and then the values of another matrix, then multiply them and it would yield the above result. As a rule of thumb, you make sure to only multiply similar matrices.
3 0
3 years ago
What is the range of the function y = 2 sin x
alexandr402 [8]

Answer:

Range: [-2, 2] {y | -2 ≤ y ≤ 2}

Step-by-step explanation:

he given function is y = 2sinx

We have to find the range of the given function.

Since at y-axis sine function has the variance between -1 to 1 so range of y = sinx is [-1, 1]

and if the amplitude of sine function is 2 then sine function will vary from -2 to 2 which implies that range of y = 2 sinx will be [-2, 2]

So range of y = 2sinx is [-2, 2]

Read more on Brainly.com - brainly.com/question/4419238#readmore

4 0
4 years ago
Read 2 more answers
If 48 feet are represented by 12 inches on a scale drawing, then a scale of 1/4 inch represents how many feet? a. 3 foot c. 2 fo
alukav5142 [94]
Hello there!

Math is hard! So we as students, we need to play the smart game with Math in order to find the easiest way to solve the problems. What do I mean? Well as you can see they gave us Fraction which won't be easy! So we will transform the fractions into decimals. So let's get started.

Then a scale of 1/4. Transformed into decimal = Then a scale of 0.25
So instead of using the fraction 1/4, I used its decimal 0.25

So if:

48 feet ......> 12 inches
x feet ........> 0.25 inches

Cross multiply

12 * x = 0.25 * 48

12x = 12
Divide both sides by 12
12x/12 = 12/12

x = 1

The correct answer is option D, 1 foot

I hope this helps! Please let me know if you have any question.

Thanks!
5 0
3 years ago
The equation of the line shown in the graph is y =?.
ololo11 [35]

Answer:

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Step-by-step explanation:

look where the line goes through the y axis

3 0
3 years ago
Explain why the product of 3over 4 ×12 is less than 12 Draw a model to justify your answer
lakkis [162]

Step-by-step explanation:

because it is 1/16 and 1/16 is not bigger than 1 but 12 is bigger than one because it is a whole number

7 0
4 years ago
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