Answer:
see below
Step-by-step explanation:
f(x) = x^2 – 2x – 3
To find the roots, set the equation equal to zero
0 = x^2 – 2x – 3
Factor, what two numbers multiply to -3 and add to -2
-3 * 1 = -3
-3 + 1 = -2
0 = (x-3)( x+1)
Using the zero product property
x-3 =0 x+1 =0
x=3 x=-1
First you need to change 11/20 to a decimal. You can do that by taking 11 divided by 20. 11 ÷ 20 = 0.55
Now all you have to do to change a decimal to a percent is to move the decimal place two spaces to the right. 0.55 = 55%
AND BAM! You've got yourself a percent.
There is a formula you can use:
Time = (Worker1 * Worker2) / (Worker1 + Worker2)
Time = (10 * 6) / (10 + 6)
Time = 60 / 16
Time = 3.75 hours
Answer:
3 = 10
4= 12
5=14
10= 24
Step-by-step explanation:
2 is added to each value
121, you find the angle by adding the other three angles then subtracting the result from that, from 360, 68+81+90=239 360-239=121.
~Karma