3 years ago

20 - 5 X 2 + 6 what is order of operation

Mathematics

1 answer:

serious [3.7K]3 years ago

3 0

Answer:

Parenthesis ()

Exponents x²

Multiplication ×

Division ÷

Addition +

Subtraction -

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Two years ago Juanita bought 2 shirts for $15 and last year she bought 4 shirts for $45. Assuming the prices will increase linea

AleksandrR [38]

Answer:

This year, Juanita will have to use $75.

Step-by-step explanation:

Because if 2 shirts is $15, 4 shirts will be $30. $45 is $15 more than $30, so the increase is $15. 2*4 is 8, so that will make it 15*4=60. 60+15=75.

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3 years ago

Help plz,BIG POINTS,also plz show me the steps as best as possible

Sidana [21]

Answer:

The correct answer is option 3.

Step-by-step explanation:

Given : ΔPQR, QM is altitude of the triangle

PM = 8

MR = 18

To find = QM

Solution :

PR = 8 + 18 = 26

Let, PQ = x , QR = y, QM = z

Applying Pythagoras Theorem in ΔPQR

$PQ^2+QR^2=PR^2$

$x^2+y^2=(26)^2$ ..[1]

Applying Pythagoras Theorem in ΔPQM

$PM^2+QM^2=PQ^2$

$8^2+z^2=(x)^2$ ..[2]

Applying Pythagoras Theorem in ΔQMR

$MR^2+QM^2=QR^2$

$18^2+z^2=(y)^2$ ..[3]

Putting values of $x^2$ and $y^2$ from [2] and [3 in [1].

$8^2+z^2+18^2+z^2=(26)^2$

$2z^2=(26)^2-(8)^2-(18)^2$

$2z^2=288$

$z^2=144$

z = ±12

z = 12 = QM ( ignoring negative value)

The length of QM is 12.

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3 years ago

Which of the decimal value given below is the largest? 0.52 0.052 0.0052

professor190 [17]

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Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

- 5 4 = 2x - 3 5x -5

Zinaida [17]

Answer:

x = 49/33

Hope this helps you! Even though there's no explanation... (I'm really bad at explaining, I'm just good at doing...)

3 0

3 years ago

20 - 5 X 2 + 6 what is order of operation​

20 - 5 X 2 + 6 what is order of operation