In the given expression, what does the fraction bar between 7^10 and 7^9 represent?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

Will mark brainliest! ( explain the answer too, it can be one sentence)