Answer:
120
Step-by-step explanation:
Answer:
A) 13
Step-by-step explanation:
If you recall the formula for finding a diagonal, or a^2 + B^2 = C^2, you will get 12^2 + 5^2 = C^2, if you solve that, you will get 13!
Answer:
31
Step-by-step explanation:
A negative negative is a positive
12- (-19)
12+19
31
Answer:
11x -8y = -9
Step-by-step explanation:
8x-4y=-4
-3x+4y=5
Subtract the second equation from the first
8x-4y=-4
-(-3x+4y=5)
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Distribute the minus sign
8x-4y=-4
+(3x-4y=-5)
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11x -8y = -9