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Stella [2.4K]
3 years ago
15

Write an expression that can be used to multiply 6x198 mentally

Mathematics
2 answers:
slavikrds [6]3 years ago
5 0
You could multiply
6 times 100

then 6 times 90 or 6 times 9 then add zero

and finally 6 times 8

then add them all together

i don't think its what you want but this is what i would do. mentally
Vilka [71]3 years ago
4 0
6×100+6×90+6×8 I think that is the answer
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What is the sum of the first five terms of a geometric series with a1 =20 and r =1/4?
drek231 [11]
The sum of the first n terms in a geometric sequence given the first term (a1) and the common ratio (r) is calculated through the equation,

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Substituting the known terms,
                           Sn = (20)(1 - (1/4)^4)) / (1 - 1/4)
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Thus, the sum of the first four terms is 26.5625. </span></span>
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3 years ago
A rectangular garden has an area of 22 square feet. If its length is 7 feet less than twice its​ width, find the dimensions of t
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2 years ago
5x-2y=30 complete the missing solution to the equation​
astra-53 [7]

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4 0
2 years ago
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Jessica pours 1/3 of a cup of water into a pot. She does this 5 times. How many
nydimaria [60]
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4 0
2 years ago
Lines a and b are parallel. what is the value of x?
bogdanovich [222]

Answer:

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Step-by-step explanation:

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2 years ago
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