(a^3 - 2a + 5) - (4a^3 - 5a^2 + a - 2)
=a^3 - 2a + 5 - 4a^3 + 5a^2 - a + 2
= -3a^3 + 5a^2 - 3a + 7
Right triangles must follow the pythagorean theorem, so a^2+b^2=c^2.
Let's find a^2 and b^2 by squaring the first 2 side lengths.
(x^2-1)^2= x^4-2x^2+1
(2x)^2= 4x^2
Then add the two to find c^2
x^4+ 2x^2 +1= c^2
Root both sides
x^2+1=c
Since the side lengths can be plugged into the pythagorean theorem, the side lengths must represent a right triangle.
Hope this helps!
The average of Earth's aphelion and perihelion (nearest and farthest
distances from the sun) is 149,553,262 km.
The average of Saturn's aphelion and perihelion (nearest and farthest
distances from the sun) is 1,426,666,422 km.
That's about 4.6% less than 10-times Earth's number.
The difference is 6.887 x 10⁷ km . (rounded)
Answer:
$150
Step-by-step explanation:
Let the account earns 5% APR as simple interest for the invested principal.
Now, the formula of simple interest gives that,
, where A is the final amount, P is the principal amount invested, r is the % of interest and t is the number of years for which the principal is invested.
So, the interest earned will be given by, 
Hence, in our case, $300 is invested for 10 years at a simple interest of 5%. So,
dollars.
Therefore, the amount of interest earned will be $150. (Answer)