15. MAKING TWO-WAY TABLES You conduct a survey that asks 245 students in your school whether they
have taken a Spanish or a French class. One hundred
nine of the students have taken a Spanish class, and
45 of those students have taken a French class.
Eighty-two of the students have not taken a Spanish
or a French class. Organize the results in a two-way
table. Include the marginal frequencies.
(See Example 2.)
a
a

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula

the answer is 0052

0 0 5 2

5 0 2 6 3 5

− 0

2 6

− 0

2 6 3

− 2 5 0

1 3 5

− 1 0 0

3 5

well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.