For Exercises 5 and 6, find the value of x. 5.
B
879
(x + 4) ft/87°
7 ft.
400
С C
40°
R
A
P
9 ft
9 ft
6. D
15 ft
23°
649
X
E
239
N
(4x - 1) ft
1640
F

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.

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?

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?