Answer:
<h2>
![- 12 {s}^{2} + 11st - 2 {t}^{2}](https://tex.z-dn.net/?f=%20%20-%2012%20%7Bs%7D%5E%7B2%7D%20%20%2B%2011st%20-%202%20%7Bt%7D%5E%7B2%7D)
</h2>
Step-by-step explanation:
(–3s + 2t)(4s – t)
= -3s (4s - t) + 2t(4s - t)
![= - 12 {s}^{2} + 3st + 8st - 2 {t}^{2}](https://tex.z-dn.net/?f=%20%3D%20%20-%2012%20%7Bs%7D%5E%7B2%7D%20%20%2B%203st%20%2B%208st%20-%202%20%7Bt%7D%5E%7B2%7D%20)
![= - 12 {s}^{2} + 11st - 2 {t}^{2} (ans)](https://tex.z-dn.net/?f=%20%3D%20%20-%2012%20%7Bs%7D%5E%7B2%7D%20%20%2B%2011st%20-%202%20%7Bt%7D%5E%7B2%7D%20%28ans%29)
Answer:
Step-by-step explanation:
For b. 4 squared is 16 and -4 squared is also 16. They are equal.
For c. the square root of a squared is a; the square root of b squared is b, so the statement "...implies a<b for all real numbers a and b" is true.
Mentally, rotating the Cartesian Plane 180º, we find that the figure that was in the 4th quadrant goes to the 2nd quadrant.
So, answer B
She walked from her home to the park which is 1 and a half mile and 2 miles around the park and 1 and a half back home. Add them up and the answer is 5 miles.