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pav-90 [236]
3 years ago
13

Simplify the expression (4 + 5i)(4 - 5i).16 - 20i16 + 20i-941​

Mathematics
1 answer:
AnnZ [28]3 years ago
3 0

Answer:

The answer i got was 41. i just took a test with the same problem and it was correct. Hope this helps.

Step-by-step explanation:

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In the figure shown, what fractional part of the circle is shaded?
charle [14.2K]

Answer:

4/15

Step-by-step explanation:

Add up the unshaded part

1/3 +2/5

Get a common denominator

1/3 *5/5 + 2/5 *3/3

5/15 + 6/15

11/15

Subtract this from 1 for the entire circle

15/15 -11/15

4/15

4/15 is shaded

3 0
2 years ago
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You have $5.00 in quarters and dimes. You have a total of 41 coins. How many of the coins are quarters?
Dmitry_Shevchenko [17]
One because if you put two then the would be 50 and thats over 41
8 0
3 years ago
Mary has borrowed 48 books from the library. This is 22% of all of the books in the library. How many books are in the library?
Ann [662]

Answer:

218

Step-by-step explanation:  

ATQ,

22%of total books = 48

Let the total no. of books in library be x.

22/100x=48

x=4800/22

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5 0
2 years ago
Find the value of x.
OLEGan [10]

Answer:

x=6.09cm

Step-by-step explanation:

Working out AB:

7.5²+4.9²

= √80.26

AB= 8.96cm

To work out x:

AB is the opposite, where BC is the adjacent. This means that we have to use TOA.

x=8.96/Tan(55.8)

x= 6.09cm

7 0
3 years ago
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4) 16 + 7 + 9 = 7 + 9 + 16 *
nlexa [21]

Answer:

a.) Commutative Property of addition

Step-by-step explanation:

6 0
2 years ago
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