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3 years ago

How do I do orders of operations

Mathematics

2 answers:

shusha [124]3 years ago

8 0

Step-by-step explanation:

Go from left to right doing any "A" or "S" as you find them. You can remember by saying "Please Excuse My Dear Aunt Sally".

(Brackets,Exponents,Divide,Multiply,Add,Subtract).

xeze [42]3 years ago

4 0

You can use PEMDAS to solve order of operations!

Which means, "Please Excuse My Dear Aunt Sally".

P= Parenthesis

E= Exponents

M= Multiplication

A= Addition

S= Subtraction

Here is an example of how to solve order of operations:

1×1+2-(12-1)

First: (12-1) = 11

Second: 1×1=1

Third: 1+2=3

Fourth: 3-11=8

The answer would be 8.

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Please help FAST I need the answer along with you explaining the steps so I can get it thanks! I’ll give Brainlist also!

kupik [55]

Answer:

The equation of required line is: $\mathbf{5x-8y+34=0}$

Step-by-step explanation:

We need to write equation in the form Ax+By+C=0 of the line parallel to $5x-8y+12=0$ and through the point (-2,3)

First we need to find slope and y-intercept of the required line.

Using equation of line $5x-8y+12=0$ to find slope.

Since the given line and required lines are parallel there slope is same.

Writing equation in slope intercept form: $y=mx+b$ where m is slope.

$5x-8y+12=0 \\-8y=-5x-12\\\frac{-8y}{-8y}=\frac{-5x}{-8}-\frac{12}{-8}\\y=\frac{5}{8}x+\frac{3}{4}$

So, the slope m = 5/8

The slope of required line is $m=\frac{5}{8}$

Now finding y-intercept using slope $m=\frac{5}{8}$ and point(-2,3)

$y=mx+b\\3=\frac{5}{8}(-2)+b\\3=\frac{-5}{4}+b\\b=3+\frac{5}{4}\\b=\frac{3*4+5}{4}\\b=\frac{12+5}{4}\\b=\frac{17}{4}$

So, the equation of required line having slope $m=\frac{5}{8}$ and y-intercept $b=\frac{17}{4}$

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So, The equation of required line is: $\mathbf{5x-8y+34=0}$

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