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m_a_m_a [10]
4 years ago
9

The sum of -7.68 and it’s additive inverse is??

Mathematics
1 answer:
Readme [11.4K]4 years ago
4 0
The answer is 0. the additive inverse of a negative number is the same number but positive. to find the sum means to add them together. for example take 2 and -2. 2 is the additive inverse of -2. if you add 2+-2 the answer comes out to 0
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6 times the sum of a number and 15 is -42​
wariber [46]

Answer:

x=-22

Step-by-step explanation:

6(x+15)=-42

6x+90=-42

6x=-132

x=-22

3 0
3 years ago
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AlladinOne [14]
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4 years ago
Matrices A and B are shown below.
BabaBlast [244]
The first thing you must remember is that the product of matrices is done by multiplying rows by columns.
 For this case, the AB matrix is
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8 0
4 years ago
1. Solve 3x + 3 =21
sveta [45]
1.

3x + 3 = 21

3x = 21-3

3x = 18

x = 18/3

Therefore,
x = 6


So option ( B) is the correct one.


2.

\frac{3x}{2}  - 4 = 16 \\  \frac{3x}{2}  = 16 + 4 \\  \\  \frac{3x}{2}  = 20  \\ 3x = 20 \times 2 \\ 3x = 40 \\ x =  \frac{40}{3}  = 13 \frac{1}{3}


Therefore option (B) is the correct one here too.
7 0
3 years ago
Read 2 more answers
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Ahat [919]
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Collect like terms
xz-yz=xy
z(x-y)=xy
z= \frac{xy}{x-y}
Please mark me as branliest. Thank You!!
5 0
3 years ago
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