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3 years ago

Please help 2x^2-6y+(16+4÷2)+y

1 answer:

8 0

Well, according to PEMDAS, you do what's in the parenthesis first. That would be 4/2, or 2+16 = 18. Next, -6y + y = -5y. That would be 2x^2-5y+18. Is that what you needed?

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What are the next two numbers in this sequence?<br><br>1, 11, 21, 1211, 111221, ??, ??

sertanlavr [38]

312211,13112221

Visual explanation in the attachment. I hope you'll understand ;)

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4 years ago

Write 81.4 as a fraction.

Maslowich

407 over 5 but it also has to be simplified

7 0

3 years ago

Read 2 more answers

8. To calculate 159 - 73, a student writes the follow-

Evgen [1.6K]

The question is an illustration of solving equations using estimates.

The student's strategy makes sense because he uses estimation to solve the given equation

The correct sequence of equation is as follows:

$\mathbf{159 - 73}$

$\mathbf{159 - 73 =160 - 70- 1 - 3}$

$\mathbf{159 - 73 =90- 4}$

$\mathbf{159 - 73 =86}$

We have:

$\mathbf{159 - 73}$

Add 0 to the equation

$\mathbf{159 - 73 =159 + 0- 73}$

Express 0 as 1 - 1

$\mathbf{159 - 73 =159 + 1 - 1- 73}$

$\mathbf{159 - 73 =160 - 1- 73}$

Add another 0

$\mathbf{159 - 73 =160 - 1- 73 + 0}$

Express 0 as 3 - 3

$\mathbf{159 - 73 =160 - 1- 73 + 3 - 3}$

$\mathbf{159 - 73 =160 - 1- 70 - 3}$

Rewrite as:

$\mathbf{159 - 73 =160 - 70- 1 - 3}$

Solve

$\mathbf{159 - 73 =90- 4}$

$\mathbf{159 - 73 =86}$

Read more about estimation and equations at:

brainly.com/question/18454732

7 0

3 years ago

6. What is the solution to this system of equations?

ipn [44]

Answer:B:(1,-1)
Hope it helps!

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3 years ago

Solve for y= 1/2x -1

Black_prince [1.1K]

Are u looking for the x or y? If it’s x, then it is x=2, but if it is y, then y=-1

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3 years ago