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laila [671]
3 years ago
7

(7k^4)(3k^9) what is the answer to this problem

Mathematics
2 answers:
Anna [14]3 years ago
6 0

Answer:

21k ^13

Step-by-step explanation:

sergey [27]3 years ago
4 0

Answer:

21k^13

Step-by-step explanation:

when multiplying two variables that are raised to different powers you multiply the coefficient 7x3=21, then add the powers, 9+4=13 and you get 21k^13

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What types of numbers are undefined when they are under a radical sign? If you were dealing with the number √-1, would it be def
sveta [45]
1) the types of number are the negative integers (e.g √-1 √-3 <span>√-5 are not defined)
2) the answer is No, proof:  2x</span>√-1 is not defined because <span>√-1 doesn't exist
3) the answer is No, proof:  </span>√-1 - 3 is not defined because √-1 doesn't exist
4) the answer is Yes, proof: (√-1 )²=  -1 this is a real number
5) the answer is No, proof:  (√-1 )^3=  (√-1 )²(√-1 )= - 1(√-1 ), and - 1(√-1 ) is not defined because √-1 doesn't exist
6) the result would be defined with the following cases:
    √-1+n,  n>1
     √-1xn,  n<0
     √-1/n,   n<0
7) the result would not be defined with the following cases:
   √-1+n,  n<0
     √-1xn,  n>0
     √-1/n,   n>0
 8) to square <span>3 + √-1, I use the method of complex number
  i²= -1, it implies i= </span>√-1
  so 3+√-1=3+i,  and then (3+√-1)²=(3+i)²= 9 -1+6i= 8-i= 8-√-1
 9) it is used for finding complex roots of a number
3 0
3 years ago
There are 28 days in 4 weeks. What fact family would you use to find the number of days in 1week
rusak2 [61]
Divide 28 by 4 so that number is 1 week because 28/4 is 7 and there is 7 days in a week
6 0
3 years ago
Express 5/7 as a decimal.
nignag [31]

Answer:

0.71428571428

Step-by-step explanation:

Do it the old fashioned way, get out your calculator, or google it.

3 0
3 years ago
Read 2 more answers
HELPPP!!!Kelsey uses the similarity statement to describe the triangles below.
Ganezh [65]

RT = 8 , RS = 3 AND ST = 5.4


RV = 4 , RU = 1.5 AND UV = 2.7


∴ RT/RV = 8/4 = 2


AND RS/RU = 3/1.5 = 2


AND ST/UV = 5.4/2.7 = 2


∴Δ RTS IS SIMILAR TO ΔRVU


SO, the best statement is:


Each pair of sides corresponds with a common ratio of 2.



8 0
3 years ago
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What is the total length of 13 rods?
VMariaS [17]
The link!:

https://gov.12q
5 0
3 years ago
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