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jonny [76]
3 years ago
8

Please help and show work thank you!

Mathematics
2 answers:
MariettaO [177]3 years ago
7 0

Answer:

1)-0.65    2) 28.8   3) 747.6

Step-by-step explanation:

  1. divide the numerator (-13) and the denominator (20)
  2. 32 x 90= 2880, divide 2880 by 100 equals to 28.8

    3. multiply 12 by 62.3

I hope this helps!

oksano4ka [1.4K]3 years ago
6 0
The is tkdb rndnrndnrndnrjdbr r
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janice bought her mother a bunch of 10 flowers. two of the flowers are daisies. one half of the remaining flowers are tulips. wr
Paul [167]
2/10, or simplified as 1/5.
Since the part that are daisies is 2, and the total number of flowers is 10, the fraction is 2/10 or 1/5.
3 0
4 years ago
What is the perimeter of this triangle? 15 cm 5 cm 25 cm 10 cm
Lady_Fox [76]

Answer:

55

Step-by-step explanation:

Add 15+5+25+10 which is 55

hope this helps! :)

3 0
3 years ago
What is the missing justification in the proof?
nataly862011 [7]
The missing justification in the proof is
<span>B) Substitution property of equality

The expression for sin</span>² x and cos² x is substituted to the other side of the equation. Since sin x = a/c, then sin² x = a²/c². Similarly, since cos x = b/c, then cos² x = b²/c². Adding to two results to the third statement.
7 0
3 years ago
Read 2 more answers
(ar^b) ^4 = 16r^20 where a and b are positive integers work our a and b​
ivolga24 [154]

Answer:

a = 2

b = 5

Step-by-step explanation:

Given :

(ar^b)^4 = 16r^20 ; a and b are positive integers :

Opening the bracket :

a^4r^4b = 16r^20

a^4 = 16 - - - - - (1)

r^4b = r^20 - - - (2)

a^4 = 16

Take the 4th root of both sides :

(a^4)^(1/4) = 16^1/4

a = 2

From (2)

r^4b = r^20

4b = 20

Divide both sides by 4

4b/4 = 20/4

b = 5

Hence ;

a = 2

b = 5

6 0
3 years ago
What is 50% of 20. ?
svet-max [94.6K]

Answer:

it's literally 10 just divide

6 0
3 years ago
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