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Serga [27]
3 years ago
10

Whats does pemdas mean

Mathematics
2 answers:
Bumek [7]3 years ago
8 0
Its a common technique for remembering the order of operations. The abbreviation pemdas is turned into the phrase "Please excuse my Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction.
Diano4ka-milaya [45]3 years ago
6 0

Answer:

Please excuse my dear aunt sally is a way to remember it, pemdas is  parenthesis, exponents, multiplication, division, addition, subtraction

I hope I helped you out :)

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What’s the domain and range of this graph?
avanturin [10]

Given:

The graph of a downward parabola.

To find:

The domain and range of the graph.

Solution:

Domain is the set of x-values or input values and range is the set of y-values or output values.

The graph represents a downward parabola and domain of a downward parabola is always the set of real numbers because they are defined for all real values of x.

Domain = R

Domain = (-∞,∞)

The maximum point of a downward parabola is the vertex. The range of the downward parabola is always the set of all real number which are less than or equal to the y-coordinate of the vertex.

From the graph it is clear that the vertex of the parabola is at point (5,-4). So, value of function cannot be greater than -4.

Range = All real numbers less than or equal to -4.

Range =  (-∞,-4]

Therefore, the domain of the graph is (-∞,∞) and the range of the graph is (-∞,-4].

3 0
3 years ago
Simplify the square root as much as possible. Square root 338
sleet_krkn [62]

Answer:

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5 0
3 years ago
Can someone help me on this Proofs problems? It's just number one and two.
leonid [27]

See Explanation

Step-by-step explanation:

1. By interior angle sum Postulate of a triangle.

m\angle a+ m\angle y +m\angle z= 180\degree.... (1)\\\\m\angle a+ m\angle w +m\angle x= 180\degree.... (2)\\\\

From equations (1) & (2), we find:

m\angle a+ m\angle y +m\angle z= m\angle a+ m\angle w +m\angle x\\\\m\angle y +m\angle z= m\angle w +m\angle x\\

Hence proved

2. In \triangle PQS, \: \angle QSR is exterior angle.

Therefore, by remote interior angle theorem, we have:

m\angle QPS + m\angle PQS= m\angle QSR\\\\x + m\angle PQS= 2x\\\\m\angle PQS= 2x-x\\\\m\angle PQS = x.... (1)\\\\m\angle QPS = x.... (given).... (2)\\

From equations (1) & (2), we find:

m\angle PQS = m\angle QPS\\\\\therefore \angle PQS \cong \angle QPS\\\\\therefore PS \cong QS\\(sides\: opposite \: to\: congruent \:\angle s) \\\\

\therefore \triangle PQS is an isosceles triangle.

Thus proved.

3 0
3 years ago
Which of the following fractions is an improper fraction?<br> 2/3<br> 6/11<br> 21/25<br> 8/7
kirza4 [7]

Answer:

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Step-by-step explanation:

The Numerator is bigger than the denominator which in turn can be converted to a mixed fraction.

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muminat

Answer:

A / commutative property

Step-by-step explanation:

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