The quadratic formula used to solve a quadratic of the form ax^2+bx+c is:
x=(-b±√(b^2-4ac))/(2a) so in this case:
x=(3±√(9+8))/4
x=(3±√17)/4
Answer:
EXPlaIN THIS TO ME cuz i have no idea
Step-by-step explanation:
Answer:
50.465 km
Step-by-step explanation:
In order to find the distance in kilometers, you need to first convert the marathon distance into yards. Since the conversion measurement of 1 mile = 1760 yards is given, you can use this to find the total yards in 26 miles:
or x = 45,760 yards
Adding this amount to the additional 385 in the marathon distance:
45760 + 385 = 46,145 yards
Since 1 yard = 0.9144 meters, we can find the number of meters the same way we found yards:
or m=50,465 meters
Since the question is asking for kilometers, we can need to divide the number of meters by 1000, or move the decimal point three places to the left:
50,465 ÷ 1000 = 50.465 km
Answer:
The answer is $429.88.
Step-by-step explanation:
Bianca received monthly paychecks of $2985.25 last year.
So, her total yearly income became:
dollars
14.4% of her yearly income got withheld for federal income tax, so amount becomes :
dollars
Now if we divide this by 12, we get the deduction for each paycheck.
dollars
Therefore, the answer is $429.88.
Or simply you can take 14.4% of per pay check.
dollars.