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charle [14.2K]
3 years ago
12

Rewrite the expression. Use an exponent, rather than repeated multiplication. (-4) (-4). Then simplify. Show work.

Mathematics
1 answer:
MakcuM [25]3 years ago
7 0

{4}^{2}
it is four to the power of two
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You pick a card at random.<br> What is P(even or prime)?<br><br> Write your answer as a percentage.
Nataly [62]
The answer is 50 percent because there is a 2/4 x 100 chance
6 0
2 years ago
Please answer this and thank you<br><br> If DE=4x+10, EF=2-1, and DF=9x-15, find DF.
professor190 [17]
I hope that 2-1 means 21.

DE + EF = DF
4x + 10 + 21 = 9x - 15
4x + 31 = 9x - 15
31 = 9x - 4x - 15
31 = 5x - 15
46 = 5x
x = 9 1/5 = 9.2

You want 9x - 15
9*9.2 - 15
82.8 - 15
67.8 <<<<< answer. 
If I have given the wrong meaning to 2-1 (which could mean 1) leave another note and I will correct my work. 
8 0
3 years ago
5.1 kilometers to meters and centimeters
Snezhnost [94]
Hey there 

1 km = 1000 meters 
So 5 km will equal 5000 meters 
.1 will equal  100 meters 

5.1 km = 5100 meters 

<span>100,000 centimeters = 1 kilometer 
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Hope this helps  


7 0
3 years ago
Read 2 more answers
What is 77.2-43.778?<br>what is 2.072 divided by 5.6
Shkiper50 [21]

2.072/5.6= 0.37

77.2- 43.778= 33.422

Hope this helps!

~LENA~


8 0
3 years ago
100 points if you show how you got the answer!
ludmilkaskok [199]

First, simplify each one.

9.98 x 10^6 = 9980000

7.3 x 10^7 = 73000000

Next, subtract the freight from the aircraft

73000000 - 9980000 = 63020000

Round the decimal point to the first significant digit, and place the amount of place values the decimal point moved to the left as a power sign, over 10.

63020000 = 6.302 x 10^7

6.302 x 10^7 is your answer

hope this helps

8 0
3 years ago
Read 2 more answers
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