Answer:
Step-by-step explanation:
Means of means = means of extremes 8y = x
x = 8y
Option B is the correct answer
The total he earns is the sum of two parts. One part is the $200 per car. The other part is the 3% commission.
total earnings = $200 per car + 3% commission on amount of sales
Let's look at the $200 per car first.
He sold 3 cars.
He earns $200 for each car he sells, so just from that he earns
3 * $200 = $600.
Now we look at the 3% commission.
He earns 3% of the total amount of sales.
The total amount of sales for the 3 cars was $32,343.
He earns 3% of that amount, so his 3% commission is
3% of $32,3243 = 3% * $32,343 = 0.03 * $32,343 = $970.29
The total earnings are the sum of the two parts.
$600 + $970.29 = $1570.29
Answer:
Any expression that has an X with an exponent of 4 and no other higher exponent.
Step-by-step explanation:
The degree of an expression is the highest exponent on an X in the equation.
Answer:
7
Step-by-step explanation:
16+5+16+5+16+5
It looks like the differential equation is
Check for exactness:
As is, the DE is not exact, so let's try to find an integrating factor <em>µ(x, y)</em> such that
*is* exact. If this modified DE is exact, then
We have
Notice that if we let <em>µ(x, y)</em> = <em>µ(x)</em> be independent of <em>y</em>, then <em>∂µ/∂y</em> = 0 and we can solve for <em>µ</em> :
The modified DE,
is now exact:
So we look for a solution of the form <em>F(x, y)</em> = <em>C</em>. This solution is such that
Integrate both sides of the first condition with respect to <em>x</em> :
Differentiate both sides of this with respect to <em>y</em> :
Then the general solution to the DE is
