If the discriminant is a positive number, there will be 2 possible solutions. If you replace the entire section of b²-4ac with 16, you will see that the equation becomes; (-b+-√16)/2a --> leading to an answer with the + and another with the -.
If the discriminant is 0, there will be 1 possible solution, (again replace this into the discriminant value) (-b)/2a ---> this formula is used to also find the x coordinates of a vertex, fyi.
If the discriminant is a negative number, there will be no solution (since squareroot of a negative number is not possible)
Hope I helped :)
The answers 40 because 26/x=1/0.5
26/x=1/0.5 simplified US equal to x=13
13 times 120=1560
1560 divided by 39 equals 40
Answer:
Step-by-step explanation:
Area of a circle is equal to , where r is the radius
A diameter is twice the length of the radius. ()
So the radius is 4 cm.
so the Area is
Answer:
Before Christ
Step-by-step explanation:
This is a historical term which is the opposite of AD(Anno Domini)
I do not know if I have spelt Anno Domini correctly but it does not matter
If for the slower printer it takes 10 hours for the whole thing, how much has it done in 1 hour? well, since it takes 10 hours total, in 1 hour it has only done 1/10 th of the whole work.
the faster printer however, can do it in 6 total, how much has it done in 1 hour? well, 1/6 of the whole work.
now, let's say, they both work together, and it takes "t" hours to finish the whole thing with both rolling.
let's add both rates to see how much that is,
which is 3 hours and 45 minutes.