Answer:
6
Step-by-step explanation:
R'S' is equal in length to RS.
length doesnt change, it was just rotated.
Answer:
Distributive property
Step-by-step explanation:
-3/4*5/4-(-6/7)*(-3/4)
-15/16-(18/28)
-15*7-18*4/112
-105-72/112
-177/112
Answer:
0.1666666 repeated
Step-by-step explanation:
Answer:
k = - 2
Step-by-step explanation:
Given α and β are the zeros of x² - 6x + k = 0 , with
a = 1, b = - 6 and c = k , then
α + β = -
= -
= 6
αβ =
=
= k
Then solving
(α + β)² - 2αβ = 40
6² - 2k = 40
36 - 2k = 40 ( subtract 36 from both sides )
- 2k = 4 ( divide both sides by - 2 )
k = - 2