Answer:
a=5
x=4
ax+3=23
5×4+3=23
Step-by-step explanation:
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Answer: 3t²(2st⁷ - s⁶ - 2t⁵)
<u>Step-by-step explanation:</u>
5s⁶t² + 6st⁹ - 8s⁶t² - 6t⁷ <em>5s⁶t² and - 8s⁶t² are like terms which = -3s⁶t² when combined</em>
= 6st⁹ - 3s⁶t² - 6t⁷ <em>next, factor out the GCF of 3t²</em>
= 3t²(2st⁷ - s⁶ - 2t⁵)
I just did this a few seconds ago and the correct answer is 78. The check above the number is green which means its correct.
I think it is acute because below 90 is acute above 90 is obtuse and exactly 90 is right