Answer:
B.x2-4x=18
x2-4x+4=18+4
Step-by-step explanation:
When you complete the square your quadratic equation must be written in the standard form which is ax^2+bx+c.
First you are going to want to move your c term to the right (in this case move -18 to the right by adding 18 to both sides). This will get you x^2-4x=18. Now you are going to need to complete the square. To complete the square you divide the number in the bx term (in this case -4) by 2 and then square it. (-2^2=4 since a negative times a negative equals a positive). Now that you have 4 you are going to add it to both sides to get x2-4x+4=18+4.
Circumference = diameter * PI
circumference = 17 * PI
circumference =
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53.407075111
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</span>
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cm
970 all the others are not
Answer:
The line would be verticle or up and down, since the x coordinate is the same it would be up and down
funciton is y=2
Ok. You need to find the 10% of days it did rain. Since there were 30 days, ten percent of that would be 3 days. So it rained three days. If there were 30 days, then 30-3=27 days it did not rain.
