1.
to divide a decimal by a power of ten, move the decimal point to the right the same number of places as there are zeros in the power of ten.

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false
3.
the first step in adding decimals is to write the decimals vertically with the decimal points aligned.

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false

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?