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2 years ago

What are the rules for the order of operations

Mathematics

1 answer:

tigry1 [53]2 years ago

6 0

Answer:theres a thing called PEMDAS perenthesis exponent multiply divide add subtract

Step-by-step explanation:

hope that helped

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X + 2y = 5 x - 3y = 7 What is the value of the y-determinant? -2 -1 2

grandymaker [24]

Answer:

y-determinant = 2

Step-by-step explanation:

Given the following system of equation:

x + 2y = 5
x - 3y = 7

Let's represent it using a matrix:

$\left[\begin{array}{ccc}1&2\\1&-3\end{array}\right] = \left[\begin{array}{ccc}5\\7\end{array}\right]$

The y‐numerator determinant is formed by taking the constant terms from the system and placing them in the y‐coefficient positions and retaining the x‐coefficients. Then:

$\left[\begin{array}{ccc}1&5\\1&7\end{array}\right]$

y-determinant = (1)(7) - (5)(1) = 2.

Therefore, the y-determinant = 2

5 0

3 years ago

Please answer this question!!

n200080 [17]

B. 273.18 is the correct answer I think.

6 0

3 years ago

Change laundry in Rea pick apples Andre pics three times as many pounds is Maria Jane pics two times as many pounds was Andre th

Ugo [173]

There is not enough info to solve this

7 0

3 years ago

Find the surface area.

Margaret [11]

Answer:

1014cm^2

Step-by-step explanation:

find the area of one side and times it by 6 (bc a cube has 6 sides)

13×13=169

169×6=1014

6 0

3 years ago

Help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Wittaler [7]

Answer:

Hi, there the answer is E because it is a function

and also the x does not repeat itself.

Step-by-step explanation:

Also, if it is not a function x will repeat and equivalent to not a function

5 0

3 years ago