Answer:
5 blocks
Step-by-step explanation:
5 blocks for every barometer
Answer:
option B
Step-by-step explanation:
Top right graph
Answer:

Step-by-step explanation:





For the Interval 
Length of the Curve 
Using T1-Calculator

Answer:
x²+2x-3=0
According to Vieta's formula:
x²-(Sum of roots)x+(product of roots)=0
Sum of roots=-3+1=-2
Product of roots=-3×1=-3
The equation is x²-(-2)x+(-3)=0
x²+2x-3=0
Answer:
The slope is 
Step-by-step explanation:
∵ The rule of the slope passing through 2 points is:
m = 
∵ The points are (7 , 8) and (-7 , 1)
∴ m = 