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(6.3×10^-5×4.1×10^3 ) / (5.2×10^5× 9.7×10^8)

=5.1209357652656621728786677... × 10^-16

I like the witch comment but who is the idiot?

In Ausrtralia your PEDMAS  if referred to a  BODMAS

BIMDAS may be what this student is taught

brackets, indices, (multiplication and division) (addition and subtraction)  MAKES PERFECT SENSE.

All scientific calculators that I have seen, including this one, have order of operation automatically built in.

Why does the witch require it to work? Unless you meant "which," which is totally a different word. And BIMDAS isn't there because it's built in to the calculator. And by the way, it's spelled PEMDAS, not BIMDAS. Go to school for once, idiot.

1.7724538509055159

y2=9/64 divide both sides by 2

y=(9/64) / 2

y=(9/64) x 1/2

y=9/128

Use a calculator.

Find f^-1 for the function f(x)=sqrt(3)(x-2)+8

The inverse function is: (x+2 sqrt(3)-8)/sqrt(3)

  A₁. The small 1 to the right is called a subscript.

One number is 5 larger than another number. the sum of twice the larger and 3 times the smaller is 50. find the numbers

explain please

Let the smaller number =N

Let the larger number =N + 5

2[N + 5] + 3N = 50

2N + 10 + 3N = 50

5N = 50 - 10

5N = 40 divide both sides by 5

N=8 One of the numbers

8+5 = 13 The second number.

0.0123456790123457 what is this number changed into a fraction?

=~ 1/81

order of operations is 

Parentheses

Exponents

Multiplication and

Division

Addition and

Subtraction

so 9 x 4 or 9+9+9+9 is 36

and 36 - 5 is 31

note- multiplication and divison are on the same level technically so for example you have 3/1 x 4 you would use division first. you just go from left to right

its the same way for addition and subtraction. ex. 3-1+4=6

Simplify the following:
-a^2 b^2 (5 a^3 b-3 b^3)

Factor b out of 5 a^3 b-3 b^3:
-a^2 b^2 b (5 a^3-3 b^2)

-a^2 b^2 b (5 a^3-3 b^2) = -a^2 b^(2+1) (5 a^3-3 b^2):
-a^2 b^(2+1) (5 a^3-3 b^2)

2+1 = 3:
Answer: |-a^2 b^3 (5a^3 - 3b^2)

\(d = {\sqrt{(x_2 - x_1)^2+(y_2 - y_1)^2} }\)

1.93423002 x 10^8

4 km / 1/2 hour

4 x 2 = 8 km/h.

What is the GCF of 35 and 39 =1

Slope formula: m = (y2 - y1) / (x2 - x1). You subtract the x's and y's of one point from the other.

m = (9 - 3) / (5 - -3)

m = 6 / 8

m = 3 / 4

It doesn't matter which point you use for x1 and y1:

m = (3 - 9) / (-3 - 5)

m = -6 / -8

m = 6 / 8

m = 3 / 4

Perimeter=2[ L + W ]

Length=L

Width =2L - 9

72 = 2[ L + 2L - 9 ]

72=2L + 4L - 18

6L =72 + 18

6L= 90 divide both sides by 6

L =15 cm - the Length of the rectangle

W=[2 x 15] - 9

W = 21 cm - the Width of the recrangle.