2 years ago

Simplify the expression 288 · 1318 − 288 · 1316.

Mathematics

1 answer:

sveticcg [70]2 years ago

8 0

Answer:

576

Step-by-step explanation:

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Archeologists found a previously unknown pyramid in Central America, shown in the figure. The media is interested in the volume

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Megan is making quilts that require 11 feet of cloth each. She has 50 feet of cloth. What are the possible numbers of quilts tha

goldenfox [79]

Answer:

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3 years ago

What's the quotient of I? <br> 5+5i divided by 2+I

sladkih [1.3K]

$if\ "i"\ is\ the\ imaginary\ unit:\sqrt{-1}=i\Rightarrow i^2=-1\\\\then\\\\\frac{5+5i}{2+i}=\frac{5+5i}{2+i}\cdot\frac{2-i}{2-i}=\frac{10-5i+10i+5i^2}{2^2-i^2}=\frac{10+5i-5}{4+1}=\frac{5+5i}{5}=\boxed{1+i}$

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2 years ago

There were 700 people in the auditorium. 60% of them were adults and the rest were children. how many adults were in the auditor

ollegr [7]

$.60 \times 700 = 420 \\ 700 - 420 = 280$
First I found the number of adults by multiplying .60 by 700. It was 420. From there all I had to do was subtract it from 700. Revealing the number of children to be 280.

5 0

2 years ago

-1 and 3/5 divided by (-2/3) as a mixed number

goblinko [34]

Answer:

2 2/5

Step-by-step explanation:

change -1 3/5 to an improper fraction

-1 3/5 = -(5*1+3)/5 = -8/5

-1 3/5 ÷ -2/3 =

-8/5 ÷-2/3

copy dot flip

-8/5 * -3/2

24/10

divide top and bottom by 2

12/5

change back to a mixed number

5 goes into 12 2 times (5*2=10) with 2 left over

2 2/5

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3 years ago