<h3>
Answer:</h3>
(2a^4+5a^3+4) -2a^2
<h3>
Step-by-step explanation:</h3>
There are 4 terms. Your <em>trinomial</em> could consist of <em>any three</em> of them. Here, we've chosen to use the one with the negative sign as the monomial, because the question asks for a difference.
Answer:
1.25 miles
Step-by-step explanation:
Since Jason swam 2.5 miles in 2 hours - divide the miles/time (2.5/2 = 1.25)
Option C is the answer to this question.. that’s 2
Answer:
89
Step-by-step explanation:
Use the mean formula, mean = sum of elements / number of elements.
He wants to keep his average at 85 or higher, so plug in 85 as the mean. Let x represent the score he has to get, and solve for x:
mean = sum of elements / number of elements.
85 = (85 + 76 + 94 + 81 + x) / 5
85 = (336 + x) / 5
425 = 336 + x
89 = x
So, he has to get a 89.
