2,862 bacteria
6,200/26 = x/12
For one hour, there are 238.461538. Multiply that by 12 and get 2861.53846. Round to the nearest whole number and your answer is 2,862 bacteria.
The quadratic equation with roots a and b is given by:

Here a=1/2 and b=-4.
So the equation is given by:

The quadratic equation is as shown above.
Answer:
12
Step-by-step explanation:
6 / .5 (same as 1/2)
or 6 X 
Remember when we divide by a fraction we do the following
Keep it (the first number stays the same)
Change it (convert from a division problem to a multiplication problem)
Flip it (flip the fraction that we are dividing by over - this is called a reciprocal)
Answer:
3)
-3.6; since - times + is -ve
4)
360 ; since - * - *- * - is +ve
5)
24 ; since - * - is +ve
Answer:
Step-by-step explanation:
By similar triangles, you get
3/BD = BD/7
BD^2 = 21
BD = √21
Now you use Pythagoras to get x
7^2 + BD^2 = x^2
49 + 21 = x^2
60 = x^2
x = √60
7.746