Answer:
n = 28.
Step-by-step explanation:
70 divided by 2.5 is 28
Answer:
100 - 4q²
Step-by-step explanation:
(10 - 2q)(10 + 2q)
each term in the second factor is multiplied by each term in the first factor.
10(10 + 2q) - 2q(10 + 2q) ← distribute parenthesis
= 100 + 20q - 20q - 4q² ← collect like terms
= 100 - 4q²
The greatest place is the digit all the way to the left, so the answer would be 30 b/c 6 is closer to 10 so you add 10 to 20 bc 20 is the greatest place
Answer:
third option
Step-by-step explanation:
Using De Moivre's theorem
( + i)³ , then
| + i |
=
= = = 2
arg( + i) = ( ) =
Thus
( + i)³
= 2³ [ cos(3 × ) + isin( 3 × ) ]
= 8 [ cos() + isin( ) ]