Answer:
Please detail the "which of the following" option
Step-by-step explanation:
(35n 3 - 30n 2 + 25n) ÷ (-5n)
Calculate the product:
(105n - 60n + 25n) ÷ (-5n)
Collect like terms:
70n ÷ (-5n)
Dividing a positive and a negative equals a negative (+) ÷ (-) = (-):
-70n ÷ (5n)
= -14
Final answer:
-14
Answer:
The gasoline cost $411.47.
Step-by-step explanation:
This problem can be solved using rules of three.
The first step is finding how many gallons were used.
They travelled a total of 3982 miles. They averaged 24 miles per gallon of gasoline.
So
1 gallon = 24 miles
x gallons - 3982 miles
195.9 gallons were used.
How much did the gasoline cost is the price per gallon was $2.48?
Each gallon costs $2.48. 195.9 gallons were used. So
$2.48*195.9 = $411.47
The gasoline cost $411.47.
99 + 2 = 101
Hope this helps!!!!
I'll assume that what was meant was
.
The exponent in the funny place is just an abbreviation:
.
I hope that's what you meant. Let me know if I'm wrong.
Let's start from the old saw
Squaring both sides,
So now the original question
becomes
Now we use the sine double angle formula
We square it to see
Taking the square root,
Not sure how you want it; we'll do it in degrees.
When we know the sine of an angle, there's usually two angles on the unit circle that have that sine. They're supplementary angles which add to
. But when the sine is 1 or -1 like it is here, we're looking at
and
, which are essentially their own supplements, slightly less messy.
That means we have two equations:
integer
or
We can combine those for a final answer,
integer
Check. Let's just check one, how about