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Pepsi [2]
3 years ago
14

What is 47,300 in scientific notation?

Mathematics
1 answer:
agasfer [191]3 years ago
3 0
There's always a decimal at the end of a whole number. here it's behind the last zero. move that decimal so that the non-zero digit is less than 10 but more than 1.
4.73, the decimal was moved 4 places to the left. so the scientific notation is
4.72X10^4
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Sin(60-theta)sin(60+theta)​
ehidna [41]

Step-by-step explanation:

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from difference of two squares:

{ \boxed{(a - b)(a + b) = ( {a}^{2} -  {b}^{2} ) }}

therefore:

=  \{ {( \frac{ \sqrt{3} }{2}) }^{2}  { \cos }^{2}  \theta \} -  \{ {( \frac{ \sqrt{3} }{2} )}^{2}  { \sin }^{2}  \theta \} \\  \\  =  \frac{3}{4}  { \cos }^{2}  \theta -  \frac{3}{4}  { \sin}^{2}  \theta

factorise out ¾ :

=  \frac{3}{4} ( { \cos }^{2}  \theta  -  { \sin}^{2}   \theta) \\  \\  = { \boxed{ \frac{3}{4}  \cos(2 \theta) }}

3 0
3 years ago
Read 2 more answers
Change y-7=m(x-4) to standard form
Ivan

Answer:

  mx -y = 4m -7

Step-by-step explanation:

Standard form is ...

  ax +by = c

where a, b, c are mutually prime integers and a > 0.

If we assume m > 0, then we need to collect the variable terms on the right side of the equation, so the coefficient of x will be positive.

  y -7 = mx -4m . . . . eliminate parentheses

  -7 = mx -y -4m . . . . subtract y

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4 0
2 years ago
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finlep [7]

Answer:

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Step-by-step explanation:

<u>Step 1: Define expression</u>

(s + 12) + (-3s - 8)

<u>Step 2: Simplify</u>

  1. Combine like terms (s):                    -2s + 12 - 8
  2. Combine like terms (constants):      -2s + 4
4 0
3 years ago
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Papessa [141]

Answer:

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