Answer:
20.3 units
Step-by-step explanation:
AB/CB = BD/AB
9/CB = 4/9
CB = 9×9/4
CB = 81/4 = 20¼ units
20.25 (20.3 units correct to 1 dp)
Answer:
a. 14
b. 10
c. 11
Step-by-step explanation:
You need to use the distance formula.
Ex: (1,2) and (1,16)
You will need to lable each
1st Point: 1 will be 
and 2 will be 
2nd Point: 1 will be 
and 16 will be 
Then you will need to plug it in
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let the temperature of Phoenix be x
And temperature of Tucson be y.
So, the algebraic representation of temperatures in each city can be given as :
At 6 p.m
temperature of Phoenix = temperature of Tucson
i.e x = y
At 9 p.m
temperature of Phoenix = x - 2 {temperature in phoenix has dropped 2 degrees}
temperature of Tucson = y - 4 {temperature in Tucson dropped 4 degrees}
At 11 p.m
temperature of Phoenix = (x - 2) - 3 = x - 5 {temperature in phoenix has dropped another 3 degrees}
temperature of Tucson = (y - 4)
