Please help!!!!!!!!! (Solve The quadratic equation by completing the square) 2x^2+12x=66 fill in the value of a and b to complet
e the solution
2 answers:
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Answer:
0.52 km
Step-by-step explanation:
We are given that
Speed of object, v=
Speed of object, v=
Distance travel by object, s=
Distance travel by object, s=
We have to find the time taken by object to travel 5 1/10 km.
We know that
Using the formula
Time taken by object to travel 5.1 km =
Time taken by object to travel 5.1 km=0.52 hr
First you make 15 a fraction by putting it over 1.
Then you make 6 2/3 a mixed fraction.
To do this, you multiply 6 with 3 and add 2 to it. Then you put the number over 3.
We get
6 X 3 = 18
18 +2 = 20
20/3
Now, we divide 15/1 with 20/3.
When we divide it, we actually cross multiply it. Basically, we flip the fraction and multiply it.
So we get 15/1 X 3/20 =
.
We get 45/20 which can be simplified to 9/5 which can be simplified to 2 1/4.
So the answer is 9/4 or 2 1/4.
Then you make 6 2/3 a mixed fraction.
To do this, you multiply 6 with 3 and add 2 to it. Then you put the number over 3.
We get
6 X 3 = 18
18 +2 = 20
20/3
Now, we divide 15/1 with 20/3.
When we divide it, we actually cross multiply it. Basically, we flip the fraction and multiply it.
So we get 15/1 X 3/20 =
We get 45/20 which can be simplified to 9/5 which can be simplified to 2 1/4.
So the answer is 9/4 or 2 1/4.