<span>6x^2 + 12x – 7 = 0
Use the quadratic formula:


x = 0.47 and x = -2.47
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Answer:
The answer is on the paper. Hope it's correct :)
We can use the vertical angle theorem which states that any two opposite angles are congruent. So, you can just set the two measures equal to each other and solve for x:




So, your answer is
20°.
Answer:
The answer to your question is A = 648 u²
Step-by-step explanation:
I attach the solution because it said that I was writing improper words.
400 : 1kg
400 : 1000
1 : 2.5
n = 2.5