Answer:
this means randomeness
Step-by-step explanation:
Answer:
hours.
Step-by-step explanation:
We have been given that a chemical spill is leaking into a river flowing 2 3/4 miles per hour.
To find the time taken by chemical to reach the town we will divide distance of town from the spill by distance covered by chemical spill in one hour.
Upon converting our mixed fractions into improper fractions we will get,
Dividing a fraction with another fraction is same as multiplying first fraction by the reciprocal of second fraction.
After cancelling out 4 we will get,
Therefore, it will take the chemicals hours to reach the town.
Well, first you multiply $12.99 × 3 = $38.97
After that, you subtract $38.97 - $19.90 = $19.07
so your answer is $19.07
Answer:
12
Step-by-step explanation:
because -77/-7 = +11
and 99/-99 = -1
...
and +11-(-1) =11+1=12
This is a quadratic equation, i.e. an equation involving a polynomial of degree 2. To solve them, you must rearrange them first, so that all terms are on the same side, so we get
i.e. now we're looking for the roots of the polynomial. To find them, we can use the following formula:
where is a compact way to indicate both solutions and , while are the coefficients of the quadratic equation, i.e. we consider the polynomial .
So, in your case, we have
Plug those values into the formula to get
So, the two solutions are