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Lubov Fominskaja [6]
3 years ago
11

Simplify the expression (3+i)-(2-2i)

Mathematics
2 answers:
Goryan [66]3 years ago
8 0
After using the FOIL method/ distributive property, we get a siimpler expression of 1+3i. Hope it helped. :)
Slav-nsk [51]3 years ago
6 0
<span>(3+i)-(2-2i)
Combine like terms
Final Answer: 1+3i</span>
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Isaiah mows a lawn in 3 hours. What unit fraction would be used to convert this to the number of minutes it takes him to mow a l
ipn [44]

60 minutes/ hour = 60/1

60/1 x 3 = 180 minutes

4 0
3 years ago
mike and kim invest $14,000 in equipment to print yearbooks for schools. each yearbook costs $7 to print and sells for $35. how
Zina [86]
The answer is A.) 500 Year books.

The profit they would gain from each year book would be $28 since each year book costs $7 to make and sells for $35. You would simply divide 14,000 by 28 to find how many books they would need to sell in order to get their investment back which would be 500 books. 

Hope this helps.
8 0
4 years ago
Find the seventh term of the geometric sequence 1, 2, 4, ... and the sum of the first seven terms. t7= S7=
IrinaK [193]

Answer:

Seventh term is 64

Sum of the first seven terms is 127

Step-by-step explanation:

The common ratio is 2

a_{n}  = a_{1} r^{n - 1}    

n = 7 and the first term is 1.  So,

a_{7}  =  1(2^{7 - 1} )  = 2^{6} = 64

Seventh term is 64

S_{n}  =  \frac{a_{1} (r^{n} -1)}{r - 1}

S_{7} = \frac{1(2^{7} -1)}{2 - 1}

    = \frac{128 - 1}{1} = 127

Sum of the first seven terms is 127

8 0
3 years ago
Solve the equality, - (7c-18)-2c&gt;0
Gwar [14]
(7c-18)-2c>0

group like terms: 7c-2c-18>0

add similar elements: 7c-2c=5c
5c-18+18>0+18

Add 18 to both sides
5c-18+18>0+18

simplify
5c>18

divide both sides by 5
5c÷5>18/5

simplify
c>18/5
7 0
3 years ago
Please helppppppppppppp
Klio2033 [76]
2+2+1 3/4+1 1/4+1+1=9 . Hope this helps :)
3 0
3 years ago
Read 2 more answers
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