Mathematics, 22.04.2020 13:20 harshakayla02
There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is 7/9.
There are 45 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.
Answers: 1
Mathematics, 21.06.2019 19:00
The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean
Answers: 3
Mathematics, 22.06.2019 01:40
Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3
Answers: 1
There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a...
The probability of randomly choosing a...