Answer:
Step-by-step explanation:
The answer is A, C, D, and E. I just took the test.
<h2>Greetings!</h2><h3>First when doing an inequality, if you find it easier to think of the ≤ signs as equal signs it can make it look easier. </h3>
14 = 2t + 18 = 20
<h3>Because we need to isolate the t, we need to subtract 18 from either side:</h3>
14 - 18 ≤ 2t + 18 - 18 < 20 - 18
<h3>Which then simplifies to:</h3>
-4 ≤ 2t < 2
<h3>Now, to get the t without two lots of it, we simply divide all sides by two:</h3>
-2 ≤ t < 1
<h3>So this means that t is smaller than one and bigger than or equal to -2, and the graph that shows that is C, because it includes -2 but is less than 1.</h3>
<h2>Hope this helps!</h2>
Answer:
2(x^4+2x^3+18)
Step-by-step explanation:
1.)2x^4+4x^3+6^2
2.)2x^4+4x^3+36
3.)2(x^4+2x^3+18)