Answer:
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Check the picture below.
since we know the acute angle is 45°, that angle with the bottom base and the slanted line and the altitude make a 45-45-90 triangle, and thus we can get the value of that section at the bottom, as you see in the picture, thus the longer base is 9 + 18 + 9, or 36.
136 pieces? Because 68 is half of it (50%) and 68 times 2 is 136
Answer: 9 over 10
Step-by-step explanation:
You can put 10 in the equation:
-10^2 -3*10 = -100 -30 = -130