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tangare [24]
3 years ago
7

Simplify by using the law of indices

Mathematics
1 answer:
ololo11 [35]3 years ago
3 0

Answer:

3^3 or 27.

Step-by-step explanation:

(3^9 x 3^4) / (3^3 x 3^7)   Workout the parentheses first:

= 3^(9+4) / 3^(3+7)

= 3^13 / 3 ^ 10

= 3^(13-10)

= 3^3.

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Find the quotient: 15x^4y^2 - 25x^2y^3 + 45xy / 5xy:
salantis [7]

Answer:

  3x^3y − 5xy^2 + 9

Step-by-step explanation:

When there is only one denominator term, the quotient can be found by dividing the numerator terms individually.

\dfrac{15x^4y^2 - 25x^2y^3 + 45xy}{5xy}=\dfrac{15x^4y^2}{5xy}-\dfrac{25x^2y^3}{5xy}+\dfrac{45xy}{5xy}=3x^3y-5xy^2+9

_____

There are a couple of things to keep in mind here:

  • an exponent tells the number of times the factor is repeated
  • equal numbers of identical factors cancel from numerator and denominator, for example x^3/x = (x·x·x)/x = x·x = x^2. (One factor of x cancels.)
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4 years ago
In how many ways can 12 people be chosen from a group of 20
Alika [10]

Answer:0 ways

Step-by-step explanation:

6 0
3 years ago
Whats the equation to this
dybincka [34]

Answer:

y=1/2x + 3

Step-by-step explanation:

Slope is ∆y/∆x. In this case,

m = (6-3) / (6-0) = 3/6 = 1/2

Y-intercept is what the y-value is when the line intersects the y-axis. Because of the point (0,3), you know it's 3.

8 0
3 years ago
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Find the area of a triangle: base 14 cm, height 5.5 cm
Sloan [31]
Area of a triangle= 1/2bh
14x5.5=77
77/2=38.5cm^2
3 0
3 years ago
IM GONNA GIVE 420 COOKIES TO THE CORRECT ANSWER!!!!
denpristay [2]

Answer:

x^{11}

Step-by-step explanation:

Based on the exponent rule, subtract the exponent with the numerator and the denominator.

So, subtract 3 and -8

3-(-8)

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x^{11}

4 0
4 years ago
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