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Montano1993 [528]
3 years ago
12

DETERMINE THE MEASURE

Mathematics
1 answer:
aalyn [17]3 years ago
7 0

Answer:

I have no idea sorry for wasting your time

Step-by-step explanation:

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What is the answer and how do you solve <br><br><br> 21x^3/3x^−1
Sunny_sXe [5.5K]

Answer:

  as written: 7x^2

  perhaps intended: 7x^4

Step-by-step explanation:

As written, the Order of Operations specifies that the only denominator factor is 3, so the expression is interpreted as ...

  \dfrac{21x^3}{3}x^{-1}=\dfrac{21}{3}x^{3-1}=7x^2

___

Sometimes grouping of denominator factors is intended, but parentheses are not written as they should be. If the intention is ...

  21x^3/(3x^-1)

then the simplification is ...

  \dfrac{21x^3}{3x^{-1}}=\dfrac{21}{3}x^{3-(-1)}=7x^4

_____

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  a^b/a^c = a^(b-c)

6 0
3 years ago
An epidemiologic survey of roller-skating injuries in Metroville, a city with a population of 100,000 (during the midpoint of th
Ahat [919]

Answer: c. \dfrac{90}{1800}\times100\%

Step-by-step explanation:

As per given , we have

Total number of residents injured from roller-skating =1,800

Total number of deaths from roller-skating = 90

Formula for Mortality rate : Mortaility\ rate= \dfrac{Deaths\ due \ to\ injury}{Tota\ injuries}

Then, the proportional mortality ratio (%) due to roller-skating was

=\dfrac{90}{1800}\times100\%

= 5%

Hence, the correct answer is c.\dfrac{90}{1800}\times100\%

8 0
3 years ago
There a video game for $4 there a discount for 20 percent off whats the sale price
siniylev [52]
Original price is 5$ 
<span>

Sale / Discounted Price: is 3.2
</span>
the sale price is 3.2$


3 0
3 years ago
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Write the exspression for 50 time the sum of 64 and 36
kirill115 [55]

Answer:

50(64+36)

Step-by-step explanation:

7 0
3 years ago
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Compute the area of the triangle ( express answer in cm2 <br><br> Height =6 cm<br><br> Base= 12cm
Nostrana [21]
The formula for the area of a triangle is 1/2bh
1/2(12)(6)
1/2(72)
36cm2 is the answer.
5 0
3 years ago
Read 2 more answers
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