Answer:
A and B first choices .
Step-by-step explanation:
![discriminate=B^2-4AC](https://tex.z-dn.net/?f=discriminate%3DB%5E2-4AC)
so, ![discriminate=12^2-4(9)(4)](https://tex.z-dn.net/?f=discriminate%3D12%5E2-4%289%29%284%29)
![=0](https://tex.z-dn.net/?f=%3D0)
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since discriminate is 0 , the equation has real and equal solutions
Answer:
1 x 31 OR 15.5 x 2
Step-by-step explanation:
As 31 is a prime number, the only whole numbers that do it are 1 × 31. There is another method using decimals. Ex: 15.5 x 2=31
$10 into two hours times 5 ends up equaling $100 per week
Answer:
216 in squared
Step-by-step explanation:
using the formula, a cube has six sides so 6 squared is 36 times 6 equals to 216