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Wewaii [24]
3 years ago
12

8 + 3 • 5 - 20 ÷ 4 = ? Please use the order of operations

Mathematics
2 answers:
nalin [4]3 years ago
8 0

We must multiply and divide before adding and subtracting here. Working from left to right, we get:

8 + 15 - 5 = ?

8 + 10 = ?

18 (answer)

expeople1 [14]3 years ago
5 0

You have to use PEMDAS

Parentheses \\ Exponents \\ Multiplication \\ Division \\ Addition \\ Subtraction

You have to do the division and multiplication first.

3 \times 5 = 15 \\ 20 \div 4 = 5

The new equation is:

8+15-5

First do the addition in the beginning:

15 + 8 = 23

At last, subtract 5

23 - 5 = 18

Your answer is 18

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6 0
3 years ago
What is the equation of the line through (-5,-1) & (3,-3)?
vivado [14]

Answer:

y = -1/4x - 2.25

Step-by-step explanation:

If you do this algebraically then use formula:

M= (y2 - y1) / (x2 - x1)

In other words, M= (-3 - (-1)) / (3 - (-5))

M= (-2) / (8)

M= -1/4 <-- This is your slope

To find y-intercept:

Substitute M in the slope-intercept equation (y=mx+b) with -1/4, y=-1/4x+b

Next, Substitute y and x with either point (-5, -1) or (3,-3)

-1 = -1/4(-5) + b   <-- Solve for B

-1.25    -1 = 1.25 + b   -1.25

-2.25 = b

Now just substitute b and m, and there's your answer:

y = -1/4x - 2.25

Hope this helps!

6 0
3 years ago
Which function is graphed?
Naddik [55]

b

Step-by-step explanation:

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6 0
1 year ago
I need help on this question please.
Leona [35]

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Step-by-step explanation:

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4 years ago
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