area of a triangle = 1/2 base x height
56.4 = 1/2 x 12 x height
56.4 = 6 x height
height = 56.4 /6 = 9.4cm
It is 7 opposite is different and absolute value would be 7 also it is always positive
The difference between the 2 different temperatures.
The key word difference refers to subtraction.
So 18 - ( - 13 )
Subtracting a negative is the same as adding the positive.
So 18 + 13
Solve the statement to get:
31
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Answer:

Step-by-step explanation:

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-35
5 * 7 = 35, and the negative in 7 makes it a negative number