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Annette [7]
3 years ago
6

What is the answer to 11 - ( - 13)

Mathematics
2 answers:
AleksandrR [38]3 years ago
4 0

Answer:

24

Step-by-step explanation:

Two negatives make a positive.

11 + 13 = 24

Ray Of Light [21]3 years ago
3 0

Answer:

24

Step-by-step explanation:

= 11 - ( -13 )

According to sign conventions, - ( - ) = +

= 11 + 13

= 24

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3><h3>Peace!</h3>
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Scientific notation for 3427
Deffense [45]

Answer:

3.427 *10^3

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

5 0
3 years ago
Leora wants to paint the nursery on her house. The nursery is an 8-by-13-foot rectangle, and the ceiling is 9 feet tall. There i
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Answer:

336 ft²

Step-by-step explanation:

The rectangle is   13  ft long  and  8 width  that means we have  two walls 8* 9   and  two walls  13*9

Total walls area is

2*8*9 + 2*13*9   =   144  + 234   =  378 ft²

then we subtrac  , areas of door, closet and windows

3 * 6.5  =  19,5 ft²

3 * 6,5  =  19,5 ft²

2 * 1,5   =   3   ft²

               42 ft²

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4 0
3 years ago
Evaluate u+ xy for u=9, x=9, y=7
Bad White [126]
U+xy
On replacing for u, x and y.
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3 years ago
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Leviafan [203]
He doesn't have a positive number. Add $45 and $112 together and it exceeds $79
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2 years ago
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