Help please!!!

To Train For a marathon Katie runs 20 km 4 days a week. How many kilometers does she run each week a) 20x4x30x2 B) 4+20x30 c) 4x20+2x30 what am i supposed to do?

There are two boxes, each with several million tickets marked “1” or “0”. The two boxes have the same number of tickets, but in one of the boxes, 49% of the tickets are marked “1” and in the other box 50.5% of the tickets are marked “1”. Someone hands me...

Most of Venezuela's population lives A.in cities B.In the country side <--- C.on islands of floating reeds D. in the rain forest

A basketball explodes into three separate pieces. Two pieces of equal mass shoot off at 20.3 m/s, one travelling to the south and one to the west, perpendicular to each other. The third piece has a mass 4 times the size of one of the other pieces. What is...

your friend left his home 2 hours ago and cycles due north at 30 km/h. you have been cycling due west at 20 km/h and arrives at his home now. At what time were the two of you closest to each other?

Explain how the Constitution promotes the public good. Your answer should be at least three well-developed paragraphs. I have read the whole chapter in my book about the Constitution and the public good but I don't understand it. Help????

hmm that's weird it says that in my textbook and thanks :)

Thank you. Do you know the 4 and 5?

Thank you catriona. 0.05 is tha power right? So the significance level is 0.95?

oh.. Thank you I.G!!

Thank you very much Fran. Do you know the others i posted?

Thank you Fran!

0.05 means 5%. And this is not the answer

Thank you MathGuru. This is what I was thinking about.. Sensitivity is the proportion of true positives that are correctly identified by the test. Specificity is the proportion of true negatives that are correctly identified by the test. Positive predicti...

Could you actually show me how to do it?