Answer:
4n^3-n^2-5n
Step-by-step explanation:
n(2n+4n2−5−3n)
=(n)(2n+4n2+−5+−3n)
=(n)(2n)+(n)(4n2)+(n)(−5)+(n)(−3n)
=2n2+4n3−5n−3n2
=4n3−n2−5n
Y=x2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
3/8 + 2/8 is 5/8, 1/2 is equal to 4/8, so 5/8 is only 1/8 away from 1/2 while 5/8 is also 3/8 away from 1 or 8/8 therefore, it is closer to 1/2
9514 1404 393
Answer:
14.4
Step-by-step explanation:
The Pythagorean theorem tells you ...
7² +a² = 16²
a² = 256 -49
a = √207
a ≈ 14.4
Pythagorean Theorem: A^2 + B^2 = C^2
<span>We know A and C, let's find B by doing it backwards </span>
<span>C^2 - A^2 = B^2 </span>
<span>4^2 - 7 (square root of 7 squared is just 7) = B^2 </span>
<span>16 - 7 = B^2 </span>
<span>9 = B^2 </span>
