En 403 5.0 cm
(b)
The pie chart shows the
distribution of textbooks to six classes A.
B, C, D, E and F in a school.
3
A
B
F
6050
70°
rs are
80
72-
Nor DRAWN TO SCALE
ven
(1) If Class D was given 720 textbooks,
how many textbooks were distributed to
each of the remaining classes?
Fin​

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103