28. Complete the two column proof. Use the text area below as needed. Given: DF = 120, DE = 4x + 6, EF = 7x + 15
Prove: x = 9
D
E
F
חד
Statement
Reason
1. Given
2. Given
3.
1. DF = 120, DE = 4x + 6, EF = 7x + 15
2. DE + EF = DF
3. 4x + 6 + 7x + 15 = 120
4. 11x + 21 = 120
5. 11x = 99
6. x = 9
4.
5.
6.

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244