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Alex787 [66]
3 years ago
12

Summarize the order of operations for evaluating expressions. Use complete sentences.

Mathematics
1 answer:
Phantasy [73]3 years ago
6 0

<span>PEMDAS
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

First, take into account if there are any brackets (parentheses) in the equation. Any equation within a bracket </span><span>(parentheses) must be performed first.

The next step is to solve any of the powers.

Thirdly, solve any of the multiplication and division. If there is both multiplication and division, work from left to right.

Finally, solve adding and subtraction. Again, if there is both, work from left to right.</span>

Hoped I helped!

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Perpendicular to y=2x+9 and has the point (4,-1)
Wewaii [24]

Answer: y =  -\frac{1}{2}x + 1

Step-by-step explanation:

      First, we will find the slope. The slope of perpendicular lines are negative reciprocals.

      In this case, the first slope is 2. The negative of 2 is -2, and the reciprocal of -2 is -\frac{1}{2}.

      Now, we will plug in this new slope, the point given, and solve for the <em>b</em>, or the y-intercept.

y = <em>m</em>x + <em>b</em>

(-1) =  (-\frac{1}{2})(4) + <em>b</em>

-1 =  -2 + <em>b</em>

1 = <em>b</em>

     Lastly, we will write our equation.

y = <em>m</em>x + <em>b</em>

y =  -\frac{1}{2}x + 1

          The line is y =  -\frac{1}{2}x + 1, or y = 1 - \frac{x}{2}.

4 0
2 years ago
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What is the slope of the line shown in the graph? (4 points)
Korvikt [17]

Answer:

a. or \frac{3}{-2}

Step-by-step explanation:

Slope is equal to y1-y2 over x1-x2.

So the equation would be:

\frac{2-(-1)}{-3-(-1)}

2-(-1)=2+1=3

-3-(-1)=-3+1=-2

So the answer is:

\frac{3}{-2}

5 0
3 years ago
Pls help me!!! ( pls dont answer if you don’t have the answer I will report you ...).
bezimeni [28]
I think 517.26
I did 10 times 3^2 (9) it equals 90. Then 90 times 3.14 and got 282.74. Then did 800- 282.74 and got 517.26
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3 years ago
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Marat540 [252]

Answer:

26 cm

Step-by-step explanation:

Please give me brainliest ;)

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monitta

Answer:

OMG THANK YOU SO MUCH I NEEDED THIS SO MUCH FOR MY MATH TEST!!!!

Step-by-step explanation:

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2 years ago
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